672861956234 has 16 divisors (see below), whose sum is σ = 1086955367400. Its totient is φ = 310544667840.

The previous prime is 672861956191. The next prime is 672861956237. The reversal of 672861956234 is 432659168276.

It can be written as a sum of positive squares in 4 ways, for example, as 578431739209 + 94430217025 = 760547^2 + 307295^2 .

It is not an unprimeable number, because it can be changed into a prime (672861956237) 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, 989192 + ... + 1524540.

Almost surely, 2^672861956234 is an apocalyptic number.

672861956234 is a deficient number, since it is larger than the sum of its proper divisors (414093411166).

672861956234 is a wasteful number, since it uses less digits than its factorization.

672861956234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583705.

The product of its digits is 26127360, while the sum is 59.

The spelling of 672861956234 in words is "six hundred seventy-two billion, eight hundred sixty-one million, nine hundred fifty-six thousand, two hundred thirty-four".