37934643973 has 4 divisors (see below), whose sum is σ = 38069642988. Its totient is φ = 37799644960.

The previous prime is 37934643941. The next prime is 37934644001.

37934643973 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in 2 ways, for example, as 25759287009 + 12175356964 = 160497^2 + 110342^2 .

It is a cyclic number.

It is not a de Polignac number, because 37934643973 - 2⁵ = 37934643941 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37934643073) 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, 67499086 + ... + 67499647.

It is an arithmetic number, because the mean of its divisors is an integer number (9517410747).

Almost surely, 2^37934643973 is an apocalyptic number.

It is an amenable number.

37934643973 is a deficient number, since it is larger than the sum of its proper divisors (134999015).

37934643973 is a wasteful number, since it uses less digits than its factorization.

37934643973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134999014.

The product of its digits is 30862944, while the sum is 58.

The spelling of 37934643973 in words is "thirty-seven billion, nine hundred thirty-four million, six hundred forty-three thousand, nine hundred seventy-three".