420849784598766 has 32 divisors (see below), whose sum is σ = 868889116440576. Its totient is φ = 135752065620000.

The previous prime is 420849784598741. The next prime is 420849784598807. The reversal of 420849784598766 is 667895487948024.

It is a super-2 number, since 2×420849784598766² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45140730 + ... + 53659901.

It is an arithmetic number, because the mean of its divisors is an integer number (27152784888768).

Almost surely, 2^{420849784598766} is an apocalyptic number.

420849784598766 is an abundant number, since it is smaller than the sum of its proper divisors (448039331841810).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

420849784598766 is a wasteful number, since it uses less digits than its factorization.

420849784598766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98823568.

The product of its (nonzero) digits is 46820229120, while the sum is 87.

The spelling of 420849784598766 in words is "four hundred twenty trillion, eight hundred forty-nine billion, seven hundred eighty-four million, five hundred ninety-eight thousand, seven hundred sixty-six".