837706666472 has 16 divisors (see below), whose sum is σ = 1691523076740. Its totient is φ = 386633846016.

The previous prime is 837706666411. The next prime is 837706666477. The reversal of 837706666472 is 274666607738.

It can be written as a sum of positive squares in 2 ways, for example, as 586900016836 + 250806649636 = 766094^2 + 500806^2 .

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (837706666477) 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, 4027435793 + ... + 4027436000.

Almost surely, 2^837706666472 is an apocalyptic number.

It is an amenable number.

837706666472 is an abundant number, since it is smaller than the sum of its proper divisors (853816410268).

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

837706666472 is a wasteful number, since it uses less digits than its factorization.

837706666472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8054871812 (or 8054871808 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 62.

The spelling of 837706666472 in words is "eight hundred thirty-seven billion, seven hundred six million, six hundred sixty-six thousand, four hundred seventy-two".