72434946064 has 40 divisors (see below), whose sum is σ = 152043393600. Its totient is φ = 33231308928.

The previous prime is 72434945981. The next prime is 72434946097. The reversal of 72434946064 is 46064943427.

It is a super-2 number, since 2×72434946064² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72434945999 and 72434946017.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1007914 + ... + 1077385.

It is an arithmetic number, because the mean of its divisors is an integer number (3801084840).

Almost surely, 2^72434946064 is an apocalyptic number.

It is an amenable number.

72434946064 is an abundant number, since it is smaller than the sum of its proper divisors (79608447536).

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

72434946064 is a wasteful number, since it uses less digits than its factorization.

72434946064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2085487 (or 2085481 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 49.

The spelling of 72434946064 in words is "seventy-two billion, four hundred thirty-four million, nine hundred forty-six thousand, sixty-four".