72277377752142 has 40 divisors (see below), whose sum is σ = 161958318923016. Its totient is φ = 24091945438608.

The previous prime is 72277377752131. The next prime is 72277377752269. The reversal of 72277377752142 is 24125777377227.

72277377752142 is a `hidden beast` number, since 7 + 2 + 2 + 7 + 7 + 37 + 77 + 521 + 4 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 72277377752142.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2899968 + ... + 12367884.

Almost surely, 2^{72277377752142} is an apocalyptic number.

72277377752142 is an abundant number, since it is smaller than the sum of its proper divisors (89680941170874).

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

72277377752142 is a wasteful number, since it uses less digits than its factorization.

72277377752142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9515054 (or 9515045 counting only the distinct ones).

The product of its digits is 112943040, while the sum is 63.

The spelling of 72277377752142 in words is "seventy-two trillion, two hundred seventy-seven billion, three hundred seventy-seven million, seven hundred fifty-two thousand, one hundred forty-two".