72013817914 has 16 divisors (see below), whose sum is σ = 108437790888. Its totient is φ = 35867953152.

The previous prime is 72013817899. The next prime is 72013817921. The reversal of 72013817914 is 41971831027.

It can be written as a sum of positive squares in 4 ways, for example, as 67602600025 + 4411217889 = 260005^2 + 66417^2 .

It is a super-2 number, since 2×72013817914² (a number of 23 digits) contains 22 as substring.

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, 2574934 + ... + 2602750.

Almost surely, 2^72013817914 is an apocalyptic number.

72013817914 is a deficient number, since it is larger than the sum of its proper divisors (36423972974).

72013817914 is a wasteful number, since it uses less digits than its factorization.

72013817914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32769.

The product of its (nonzero) digits is 84672, while the sum is 43.

The spelling of 72013817914 in words is "seventy-two billion, thirteen million, eight hundred seventeen thousand, nine hundred fourteen".