37817445642 has 16 divisors (see below), whose sum is σ = 80084002752. Its totient is φ = 11864296640.

The previous prime is 37817445619. The next prime is 37817445649. The reversal of 37817445642 is 24654471873.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (37817445649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185379534 + ... + 185379737.

It is an arithmetic number, because the mean of its divisors is an integer number (5005250172).

Almost surely, 2^37817445642 is an apocalyptic number.

37817445642 is an abundant number, since it is smaller than the sum of its proper divisors (42266557110).

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

37817445642 is a wasteful number, since it uses less digits than its factorization.

37817445642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370759293.

The product of its digits is 4515840, while the sum is 51.

The spelling of 37817445642 in words is "thirty-seven billion, eight hundred seventeen million, four hundred forty-five thousand, six hundred forty-two".