78070830838 has 288 divisors, whose sum is σ = 176430369024. Its totient is φ = 25573363200.

The previous prime is 78070830833. The next prime is 78070830841. The reversal of 78070830838 is 83803807087.

It is a super-2 number, since 2×78070830838² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78070830833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2518413883 + ... + 2518413913.

It is an arithmetic number, because the mean of its divisors is an integer number (612605448).

Almost surely, 2^78070830838 is an apocalyptic number.

78070830838 is an abundant number, since it is smaller than the sum of its proper divisors (98359538186).

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

78070830838 is a wasteful number, since it uses less digits than its factorization.

78070830838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 81 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 52.

The spelling of 78070830838 in words is "seventy-eight billion, seventy million, eight hundred thirty thousand, eight hundred thirty-eight".