2136471892457 has 6 divisors (see below), whose sum is σ = 2485283630058. Its totient is φ = 1831261622064.

The previous prime is 2136471892447. The next prime is 2136471892543. The reversal of 2136471892457 is 7542981746312.

It can be written as a sum of positive squares in only one way, i.e., 2110000277056 + 26471615401 = 1452584^2 + 162701^2 .

It is not a de Polignac number, because 2136471892457 - 2⁶ = 2136471892393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2136471892396 and 2136471892405.

It is not an unprimeable number, because it can be changed into a prime (2136471892447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21800733548 + ... + 21800733645.

It is an arithmetic number, because the mean of its divisors is an integer number (414213938343).

Almost surely, 2^{2136471892457} is an apocalyptic number.

It is an amenable number.

2136471892457 is a deficient number, since it is larger than the sum of its proper divisors (348811737601).

2136471892457 is an equidigital number, since it uses as much as digits as its factorization.

2136471892457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43601467207 (or 43601467200 counting only the distinct ones).

The product of its digits is 20321280, while the sum is 59.

The spelling of 2136471892457 in words is "two trillion, one hundred thirty-six billion, four hundred seventy-one million, eight hundred ninety-two thousand, four hundred fifty-seven".