72067604521072 has 20 divisors (see below), whose sum is σ = 140568104460600. Its totient is φ = 35791964660288.

The previous prime is 72067604521049. The next prime is 72067604521109. The reversal of 72067604521072 is 27012540676027.

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, 15114847558 + ... + 15114852325.

It is an arithmetic number, because the mean of its divisors is an integer number (7028405223030).

Almost surely, 2^{72067604521072} is an apocalyptic number.

It is an amenable number.

72067604521072 is a deficient number, since it is larger than the sum of its proper divisors (68500499939528).

72067604521072 is a wasteful number, since it uses less digits than its factorization.

72067604521072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30229700040 (or 30229700034 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 49.

The spelling of 72067604521072 in words is "seventy-two trillion, sixty-seven billion, six hundred four million, five hundred twenty-one thousand, seventy-two".