72507281934 has 8 divisors (see below), whose sum is σ = 145014563880. Its totient is φ = 24169093976.

The previous prime is 72507281923. The next prime is 72507281963. The reversal of 72507281934 is 43918270527.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

72507281934 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6042273489 + ... + 6042273500.

It is an arithmetic number, because the mean of its divisors is an integer number (18126820485).

Almost surely, 2^72507281934 is an apocalyptic number.

72507281934 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72507281934 is a wasteful number, since it uses less digits than its factorization.

72507281934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12084546994.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 72507281934 in words is "seventy-two billion, five hundred seven million, two hundred eighty-one thousand, nine hundred thirty-four".