20397141967 has 8 divisors (see below), whose sum is σ = 21172515840. Its totient is φ = 19626569760.

The previous prime is 20397141913. The next prime is 20397141971. The reversal of 20397141967 is 76914179302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20397141967 - 2²⁷ = 20262924239 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20397141967.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20397141907) 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, 1191759 + ... + 1208752.

It is an arithmetic number, because the mean of its divisors is an integer number (2646564480).

Almost surely, 2^20397141967 is an apocalyptic number.

20397141967 is a deficient number, since it is larger than the sum of its proper divisors (775373873).

20397141967 is a wasteful number, since it uses less digits than its factorization.

20397141967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2400833.

The product of its (nonzero) digits is 571536, while the sum is 49.

The spelling of 20397141967 in words is "twenty billion, three hundred ninety-seven million, one hundred forty-one thousand, nine hundred sixty-seven".