30918248536 has 48 divisors (see below), whose sum is σ = 69611883840. Its totient is φ = 12823231680.

The previous prime is 30918248531. The next prime is 30918248561. The reversal of 30918248536 is 63584281903.

It is a super-2 number, since 2×30918248536² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 30918248536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30918248531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1259995 + ... + 1284298.

It is an arithmetic number, because the mean of its divisors is an integer number (1450247580).

Almost surely, 2^30918248536 is an apocalyptic number.

It is an amenable number.

30918248536 is an abundant number, since it is smaller than the sum of its proper divisors (38693635304).

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

30918248536 is a wasteful number, since it uses less digits than its factorization.

30918248536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2544344 (or 2544333 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 30918248536 in words is "thirty billion, nine hundred eighteen million, two hundred forty-eight thousand, five hundred thirty-six".