30778636086135 has 192 divisors, whose sum is σ = 64653781131264. Its totient is φ = 13245283814400.

The previous prime is 30778636086131. The next prime is 30778636086137. The reversal of 30778636086135 is 53168063687703.

30778636086135 is a `hidden beast` number, since 3 + 0 + 7 + 7 + 8 + 6 + 3 + 6 + 0 + 8 + 613 + 5 = 666.

It is not a de Polignac number, because 30778636086135 - 2² = 30778636086131 is a prime.

It is a super-2 number, since 2×30778636086135² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30778636086131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2319932772 + ... + 2319946038.

It is an arithmetic number, because the mean of its divisors is an integer number (336738443392).

Almost surely, 2^{30778636086135} is an apocalyptic number.

30778636086135 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30778636086135 is an abundant number, since it is smaller than the sum of its proper divisors (33875145045129).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30778636086135 is a wasteful number, since it uses less digits than its factorization.

30778636086135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19774 (or 19771 counting only the distinct ones).

The product of its (nonzero) digits is 91445760, while the sum is 63.

The spelling of 30778636086135 in words is "thirty trillion, seven hundred seventy-eight billion, six hundred thirty-six million, eighty-six thousand, one hundred thirty-five".