6477156543131 has 4 divisors (see below), whose sum is σ = 6543931352952. Its totient is φ = 6410381733312.

The previous prime is 6477156543101. The next prime is 6477156543239. The reversal of 6477156543131 is 1313456517746.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6477156543131 - 2²⁶ = 6477089434267 is a prime.

It is a super-2 number, since 2×6477156543131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6477156543101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33387404765 + ... + 33387404958.

It is an arithmetic number, because the mean of its divisors is an integer number (1635982838238).

Almost surely, 2^{6477156543131} is an apocalyptic number.

6477156543131 is a deficient number, since it is larger than the sum of its proper divisors (66774809821).

6477156543131 is an equidigital number, since it uses as much as digits as its factorization.

6477156543131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66774809820.

The product of its digits is 6350400, while the sum is 53.

The spelling of 6477156543131 in words is "six trillion, four hundred seventy-seven billion, one hundred fifty-six million, five hundred forty-three thousand, one hundred thirty-one".