37189027421 has 16 divisors (see below), whose sum is σ = 45858685824. Its totient is φ = 29367987264.

The previous prime is 37189027319. The next prime is 37189027423. The reversal of 37189027421 is 12472098173.

It is not a de Polignac number, because 37189027421 - 2²² = 37184833117 is a prime.

It is a super-2 number, since 2×37189027421² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37189027423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343106 + ... + 438291.

It is an arithmetic number, because the mean of its divisors is an integer number (2866167864).

Almost surely, 2^37189027421 is an apocalyptic number.

It is an amenable number.

37189027421 is a deficient number, since it is larger than the sum of its proper divisors (8669658403).

37189027421 is a wasteful number, since it uses less digits than its factorization.

37189027421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781940.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 37189027421 in words is "thirty-seven billion, one hundred eighty-nine million, twenty-seven thousand, four hundred twenty-one".