72123346410 has 64 divisors (see below), whose sum is σ = 185027431680. Its totient is φ = 17947973120.

The previous prime is 72123346409. The next prime is 72123346429. The reversal of 72123346410 is 1464332127.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1246425 + ... + 1303004.

It is an arithmetic number, because the mean of its divisors is an integer number (2891053620).

Almost surely, 2^72123346410 is an apocalyptic number.

72123346410 is an abundant number, since it is smaller than the sum of its proper divisors (112904085270).

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

72123346410 is a wasteful number, since it uses less digits than its factorization.

72123346410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549503.

The product of its (nonzero) digits is 24192, while the sum is 33.

Adding to 72123346410 its reverse (1464332127), we get a palindrome (73587678537).

The spelling of 72123346410 in words is "seventy-two billion, one hundred twenty-three million, three hundred forty-six thousand, four hundred ten".