477677746531 has 2 divisors, whose sum is σ = 477677746532. Its totient is φ = 477677746530.

The previous prime is 477677746471. The next prime is 477677746691. The reversal of 477677746531 is 135647776774.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 477677746531 - 2²³ = 477669357923 is a prime.

It is a super-2 number, since 2×477677746531² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (477677746331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 238838873265 + 238838873266.

It is an arithmetic number, because the mean of its divisors is an integer number (238838873266).

Almost surely, 2^477677746531 is an apocalyptic number.

477677746531 is a deficient number, since it is larger than the sum of its proper divisors (1).

477677746531 is an equidigital number, since it uses as much as digits as its factorization.

477677746531 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145212480, while the sum is 64.

The spelling of 477677746531 in words is "four hundred seventy-seven billion, six hundred seventy-seven million, seven hundred forty-six thousand, five hundred thirty-one".