30640102064 has 60 divisors (see below), whose sum is σ = 70272148128. Its totient is φ = 12855976320.

The previous prime is 30640102063. The next prime is 30640102091. The reversal of 30640102064 is 46020104603.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (30640102063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 583544 + ... + 633879.

Almost surely, 2^30640102064 is an apocalyptic number.

It is an amenable number.

30640102064 is an abundant number, since it is smaller than the sum of its proper divisors (39632046064).

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

30640102064 is a wasteful number, since it uses less digits than its factorization.

30640102064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1217466 (or 1217449 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 30640102064 its reverse (46020104603), we get a palindrome (76660206667).

The spelling of 30640102064 in words is "thirty billion, six hundred forty million, one hundred two thousand, sixty-four".