72274217474137 has 4 divisors (see below), whose sum is σ = 82599105684736. Its totient is φ = 61949329263540.

The previous prime is 72274217474113. The next prime is 72274217474153. The reversal of 72274217474137 is 73147471247227.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72274217474137 - 2³¹ = 72272069990489 is a prime.

It is a super-2 number, since 2×72274217474137² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72274217474177) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5162444105289 + ... + 5162444105302.

It is an arithmetic number, because the mean of its divisors is an integer number (20649776421184).

Almost surely, 2^{72274217474137} is an apocalyptic number.

It is an amenable number.

72274217474137 is a deficient number, since it is larger than the sum of its proper divisors (10324888210599).

72274217474137 is a wasteful number, since it uses less digits than its factorization.

72274217474137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10324888210598.

The product of its digits is 25815552, while the sum is 58.

The spelling of 72274217474137 in words is "seventy-two trillion, two hundred seventy-four billion, two hundred seventeen million, four hundred seventy-four thousand, one hundred thirty-seven".