72412054702522 has 4 divisors (see below), whose sum is σ = 108618082053786. Its totient is φ = 36206027351260.

The previous prime is 72412054702451. The next prime is 72412054702541. The reversal of 72412054702522 is 22520745021427.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 71687531988801 + 724522713721 = 8466849^2 + 851189^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18103013675629 + ... + 18103013675632.

Almost surely, 2^{72412054702522} is an apocalyptic number.

72412054702522 is a deficient number, since it is larger than the sum of its proper divisors (36206027351264).

72412054702522 is a wasteful number, since it uses less digits than its factorization.

72412054702522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36206027351263.

The product of its (nonzero) digits is 627200, while the sum is 43.

Adding to 72412054702522 its reverse (22520745021427), we get a palindrome (94932799723949).

The spelling of 72412054702522 in words is "seventy-two trillion, four hundred twelve billion, fifty-four million, seven hundred two thousand, five hundred twenty-two".