420495149951 has 2 divisors, whose sum is σ = 420495149952. Its totient is φ = 420495149950.

The previous prime is 420495149941. The next prime is 420495149981. The reversal of 420495149951 is 159941594024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420495149951 - 2²⁶ = 420428041087 is a prime.

It is a super-2 number, since 2×420495149951² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 420495149893 and 420495149902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420495149911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210247574975 + 210247574976.

It is an arithmetic number, because the mean of its divisors is an integer number (210247574976).

Almost surely, 2^420495149951 is an apocalyptic number.

420495149951 is a deficient number, since it is larger than the sum of its proper divisors (1).

420495149951 is an equidigital number, since it uses as much as digits as its factorization.

420495149951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2332800, while the sum is 53.

The spelling of 420495149951 in words is "four hundred twenty billion, four hundred ninety-five million, one hundred forty-nine thousand, nine hundred fifty-one".