72007895771 has 16 divisors (see below), whose sum is σ = 87154466304. Its totient is φ = 58156363584.

The previous prime is 72007895767. The next prime is 72007895789. The reversal of 72007895771 is 17759870027.

It is a cyclic number.

It is not a de Polignac number, because 72007895771 - 2² = 72007895767 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72007895711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3326930 + ... + 3348503.

It is an arithmetic number, because the mean of its divisors is an integer number (5447154144).

Almost surely, 2^72007895771 is an apocalyptic number.

72007895771 is a deficient number, since it is larger than the sum of its proper divisors (15146570533).

72007895771 is a wasteful number, since it uses less digits than its factorization.

72007895771 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6675530.

The product of its (nonzero) digits is 1728720, while the sum is 53.

The spelling of 72007895771 in words is "seventy-two billion, seven million, eight hundred ninety-five thousand, seven hundred seventy-one".