37540574421 has 16 divisors (see below), whose sum is σ = 57218792064. Its totient is φ = 21446466624.

The previous prime is 37540574419. The next prime is 37540574437. The reversal of 37540574421 is 12447504573.

It is not a de Polignac number, because 37540574421 - 2¹ = 37540574419 is a prime.

It is a super-4 number, since 4×37540574421⁴ (a number of 43 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37540574441) 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, 132426 + ... + 304331.

It is an arithmetic number, because the mean of its divisors is an integer number (3576174504).

Almost surely, 2^37540574421 is an apocalyptic number.

It is an amenable number.

37540574421 is a deficient number, since it is larger than the sum of its proper divisors (19678217643).

37540574421 is a wasteful number, since it uses less digits than its factorization.

37540574421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440860.

The product of its (nonzero) digits is 470400, while the sum is 42.

It can be divided in two parts, 375405 and 74421, that added together give a triangular number (449826 = T₉₄₈).

The spelling of 37540574421 in words is "thirty-seven billion, five hundred forty million, five hundred seventy-four thousand, four hundred twenty-one".