123672151972 has 12 divisors (see below), whose sum is σ = 216446272560. Its totient is φ = 61830359816.

The previous prime is 123672151931. The next prime is 123672152003. The reversal of 123672151972 is 279151276321.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1380178 + ... + 1467049.

It is an arithmetic number, because the mean of its divisors is an integer number (18037189380).

Almost surely, 2^123672151972 is an apocalyptic number.

It is an amenable number.

123672151972 is a deficient number, since it is larger than the sum of its proper divisors (92774120588).

123672151972 is a wasteful number, since it uses less digits than its factorization.

123672151972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2858090 (or 2858088 counting only the distinct ones).

The product of its digits is 317520, while the sum is 46.

The spelling of 123672151972 in words is "one hundred twenty-three billion, six hundred seventy-two million, one hundred fifty-one thousand, nine hundred seventy-two".