37540813623 has 4 divisors (see below), whose sum is σ = 50054418168. Its totient is φ = 25027209080.

The previous prime is 37540813603. The next prime is 37540813627. The reversal of 37540813623 is 32631804573.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 37540813623 - 2⁸ = 37540813367 is a prime.

It is a super-2 number, since 2×37540813623² (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 (37540813627) 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, 6256802268 + ... + 6256802273.

It is an arithmetic number, because the mean of its divisors is an integer number (12513604542).

Almost surely, 2^37540813623 is an apocalyptic number.

37540813623 is a deficient number, since it is larger than the sum of its proper divisors (12513604545).

37540813623 is a wasteful number, since it uses less digits than its factorization.

37540813623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12513604544.

The product of its (nonzero) digits is 362880, while the sum is 42.

The spelling of 37540813623 in words is "thirty-seven billion, five hundred forty million, eight hundred thirteen thousand, six hundred twenty-three".