72949512235146 has 32 divisors (see below), whose sum is σ = 154515703664448. Its totient is φ = 22881027613440.

The previous prime is 72949512235111. The next prime is 72949512235189. The reversal of 72949512235146 is 64153221594927.

It is a self number, because there is not a number n which added to its sum of digits gives 72949512235146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79131220 + ... + 80047791.

It is an arithmetic number, because the mean of its divisors is an integer number (4828615739514).

Almost surely, 2^{72949512235146} is an apocalyptic number.

72949512235146 is an abundant number, since it is smaller than the sum of its proper divisors (81566191429302).

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

72949512235146 is a wasteful number, since it uses less digits than its factorization.

72949512235146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159183526.

The product of its digits is 32659200, while the sum is 60.

The spelling of 72949512235146 in words is "seventy-two trillion, nine hundred forty-nine billion, five hundred twelve million, two hundred thirty-five thousand, one hundred forty-six".