72277220737612 has 48 divisors (see below), whose sum is σ = 145254506100480. Its totient is φ = 31122358488000.

The previous prime is 72277220737597. The next prime is 72277220737613. The reversal of 72277220737612 is 21673702277227.

It is not an unprimeable number, because it can be changed into a prime (72277220737613) 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, 11980737 + ... + 16973287.

It is an arithmetic number, because the mean of its divisors is an integer number (3026135543760).

Almost surely, 2^{72277220737612} is an apocalyptic number.

It is an amenable number.

72277220737612 is an abundant number, since it is smaller than the sum of its proper divisors (72977285362868).

72277220737612 is a wasteful number, since it uses less digits than its factorization.

72277220737612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5009902 (or 5009900 counting only the distinct ones).

The product of its (nonzero) digits is 9680832, while the sum is 55.

The spelling of 72277220737612 in words is "seventy-two trillion, two hundred seventy-seven billion, two hundred twenty million, seven hundred thirty-seven thousand, six hundred twelve".