420051756995 has 64 divisors (see below), whose sum is σ = 556686950400. Its totient is φ = 304175664000.

The previous prime is 420051756991. The next prime is 420051757001. The reversal of 420051756995 is 599657150024.

It is a Cunningham number, because it is equal to 648114²-1.

It is not a de Polignac number, because 420051756995 - 2² = 420051756991 is a prime.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (420051756991) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 486733934 + ... + 486734796.

It is an arithmetic number, because the mean of its divisors is an integer number (8698233600).

Almost surely, 2^420051756995 is an apocalyptic number.

420051756995 is a deficient number, since it is larger than the sum of its proper divisors (136635193405).

420051756995 is an equidigital number, since it uses as much as digits as its factorization.

420051756995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717 (or 1691 counting only the distinct ones).

The product of its (nonzero) digits is 3402000, while the sum is 53.

The spelling of 420051756995 in words is "four hundred twenty billion, fifty-one million, seven hundred fifty-six thousand, nine hundred ninety-five".