37423666644 has 48 divisors (see below), whose sum is σ = 107473097088. Its totient is φ = 9869977728.

The previous prime is 37423666633. The next prime is 37423666649. The reversal of 37423666644 is 44666632473.

It is a happy number.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37423666649) 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, 17134287 + ... + 17136470.

It is an arithmetic number, because the mean of its divisors is an integer number (2239022856).

Almost surely, 2^37423666644 is an apocalyptic number.

It is an amenable number.

37423666644 is an abundant number, since it is smaller than the sum of its proper divisors (70049430444).

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

37423666644 is a wasteful number, since it uses less digits than its factorization.

37423666644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34270784 (or 34270782 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 51.

The spelling of 37423666644 in words is "thirty-seven billion, four hundred twenty-three million, six hundred sixty-six thousand, six hundred forty-four".