71672536954 has 12 divisors (see below), whose sum is σ = 109541486106. Its totient is φ = 35158760312.

The previous prime is 71672536907. The next prime is 71672536961. The reversal of 71672536954 is 45963527617.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 54768636729 + 16903900225 = 234027^2 + 130015^2 .

It is a junction number, because it is equal to n+sod(n) for n = 71672536895 and 71672536904.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2743317 + ... + 2769319.

Almost surely, 2^71672536954 is an apocalyptic number.

71672536954 is a deficient number, since it is larger than the sum of its proper divisors (37868949152).

71672536954 is an frugal number, since it uses more digits than its factorization.

71672536954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52061 (or 26058 counting only the distinct ones).

The product of its digits is 9525600, while the sum is 55.

The spelling of 71672536954 in words is "seventy-one billion, six hundred seventy-two million, five hundred thirty-six thousand, nine hundred fifty-four".