37245722172 has 12 divisors (see below), whose sum is σ = 86906685096. Its totient is φ = 12415240720.

The previous prime is 37245722147. The next prime is 37245722177. The reversal of 37245722172 is 27122754273.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×37245722172² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37245722177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1551905079 + ... + 1551905102.

It is an arithmetic number, because the mean of its divisors is an integer number (7242223758).

Almost surely, 2^37245722172 is an apocalyptic number.

It is an amenable number.

37245722172 is an abundant number, since it is smaller than the sum of its proper divisors (49660962924).

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

37245722172 is a wasteful number, since it uses less digits than its factorization.

37245722172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3103810188 (or 3103810186 counting only the distinct ones).

The product of its digits is 329280, while the sum is 42.

The spelling of 37245722172 in words is "thirty-seven billion, two hundred forty-five million, seven hundred twenty-two thousand, one hundred seventy-two".