123947766424867 has 16 divisors (see below), whose sum is σ = 156062302804224. Its totient is φ = 95626411020000.

The previous prime is 123947766424849. The next prime is 123947766424907. The reversal of 123947766424867 is 768424667749321.

It is not a de Polignac number, because 123947766424867 - 2¹⁹ = 123947765900579 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123947766424793 and 123947766424802.

It is not an unprimeable number, because it can be changed into a prime (123947766424817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7968859809 + ... + 7968875362.

It is an arithmetic number, because the mean of its divisors is an integer number (9753893925264).

Almost surely, 2^{123947766424867} is an apocalyptic number.

123947766424867 is a deficient number, since it is larger than the sum of its proper divisors (32114536379357).

123947766424867 is a wasteful number, since it uses less digits than its factorization.

123947766424867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15937735290.

The product of its digits is 4096770048, while the sum is 76.

The spelling of 123947766424867 in words is "one hundred twenty-three trillion, nine hundred forty-seven billion, seven hundred sixty-six million, four hundred twenty-four thousand, eight hundred sixty-seven".