15974216677797 has 16 divisors (see below), whose sum is σ = 25126878461952. Its totient is φ = 8833668208560.

The previous prime is 15974216677763. The next prime is 15974216677801. The reversal of 15974216677797 is 79777661247951.

It is not a de Polignac number, because 15974216677797 - 2¹⁰ = 15974216676773 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15974216677697) 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, 12268982973 + ... + 12268984274.

It is an arithmetic number, because the mean of its divisors is an integer number (1570429903872).

Almost surely, 2^{15974216677797} is an apocalyptic number.

It is an amenable number.

15974216677797 is a deficient number, since it is larger than the sum of its proper divisors (9152661784155).

15974216677797 is a wasteful number, since it uses less digits than its factorization.

15974216677797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24537967288.

The product of its digits is 1960368480, while the sum is 78.

The spelling of 15974216677797 in words is "fifteen trillion, nine hundred seventy-four billion, two hundred sixteen million, six hundred seventy-seven thousand, seven hundred ninety-seven".