72103506342 has 64 divisors (see below), whose sum is σ = 175776583680. Its totient is φ = 19247625216.

The previous prime is 72103506313. The next prime is 72103506361. The reversal of 72103506342 is 24360530127.

It is a congruent number.

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, 270742 + ... + 466377.

It is an arithmetic number, because the mean of its divisors is an integer number (2746509120).

Almost surely, 2^72103506342 is an apocalyptic number.

72103506342 is an abundant number, since it is smaller than the sum of its proper divisors (103673077338).

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

72103506342 is a wasteful number, since it uses less digits than its factorization.

72103506342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737285.

The product of its (nonzero) digits is 30240, while the sum is 33.

The spelling of 72103506342 in words is "seventy-two billion, one hundred three million, five hundred six thousand, three hundred forty-two".