72077162371 has 16 divisors (see below), whose sum is σ = 73946089728. Its totient is φ = 70234444000.

The previous prime is 72077162363. The next prime is 72077162449. The reversal of 72077162371 is 17326177027.

It is a cyclic number.

It is not a de Polignac number, because 72077162371 - 2³ = 72077162363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72077172371) 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, 4200816 + ... + 4217938.

It is an arithmetic number, because the mean of its divisors is an integer number (4621630608).

Almost surely, 2^72077162371 is an apocalyptic number.

72077162371 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

72077162371 is a deficient number, since it is larger than the sum of its proper divisors (1868927357).

72077162371 is a wasteful number, since it uses less digits than its factorization.

72077162371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882.

The product of its (nonzero) digits is 172872, while the sum is 43.

The spelling of 72077162371 in words is "seventy-two billion, seventy-seven million, one hundred sixty-two thousand, three hundred seventy-one".