37818970823 has 4 divisors (see below), whose sum is σ = 37819381440. Its totient is φ = 37818560208.

The previous prime is 37818970781. The next prime is 37818970837. The reversal of 37818970823 is 32807981873.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 37818970823 - 2¹⁶ = 37818905287 is a prime.

It is a super-2 number, since 2×37818970823² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37818978823) 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, 3923 + ... + 275051.

It is an arithmetic number, because the mean of its divisors is an integer number (9454845360).

Almost surely, 2^37818970823 is an apocalyptic number.

37818970823 is a deficient number, since it is larger than the sum of its proper divisors (410617).

37818970823 is a wasteful number, since it uses less digits than its factorization.

37818970823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410616.

The product of its (nonzero) digits is 4064256, while the sum is 56.

The spelling of 37818970823 in words is "thirty-seven billion, eight hundred eighteen million, nine hundred seventy thousand, eight hundred twenty-three".