37454689021 has 4 divisors (see below), whose sum is σ = 37488647232. Its totient is φ = 37420730812.

The previous prime is 37454689009. The next prime is 37454689031. The reversal of 37454689021 is 12098645473.

It is a happy number.

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 37454689021 - 2²³ = 37446300413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37454689031) 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, 16977451 + ... + 16979656.

It is an arithmetic number, because the mean of its divisors is an integer number (9372161808).

It is a 1-persistent number, because it is pandigital, but 2⋅37454689021 = 74909378042 is not.

Almost surely, 2^37454689021 is an apocalyptic number.

It is an amenable number.

37454689021 is a deficient number, since it is larger than the sum of its proper divisors (33958211).

37454689021 is a wasteful number, since it uses less digits than its factorization.

37454689021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33958210.

The product of its (nonzero) digits is 1451520, while the sum is 49.

The spelling of 37454689021 in words is "thirty-seven billion, four hundred fifty-four million, six hundred eighty-nine thousand, twenty-one".