72122701746 has 16 divisors (see below), whose sum is σ = 148898481408. Its totient is φ = 23265387600.

The previous prime is 72122701667. The next prime is 72122701747. The reversal of 72122701746 is 64710722127.

It is not an unprimeable number, because it can be changed into a prime (72122701747) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 193878045 + ... + 193878416.

It is an arithmetic number, because the mean of its divisors is an integer number (9306155088).

Almost surely, 2^72122701746 is an apocalyptic number.

72122701746 is an abundant number, since it is smaller than the sum of its proper divisors (76775779662).

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

72122701746 is a wasteful number, since it uses less digits than its factorization.

72122701746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387756497.

The product of its (nonzero) digits is 65856, while the sum is 39.

The spelling of 72122701746 in words is "seventy-two billion, one hundred twenty-two million, seven hundred one thousand, seven hundred forty-six".