420515036822 has 4 divisors (see below), whose sum is σ = 630772555236. Its totient is φ = 210257518410.

The previous prime is 420515036807. The next prime is 420515036839. The reversal of 420515036822 is 228630515024.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105128759204 + ... + 105128759207.

It is an arithmetic number, because the mean of its divisors is an integer number (157693138809).

Almost surely, 2^420515036822 is an apocalyptic number.

420515036822 is a deficient number, since it is larger than the sum of its proper divisors (210257518414).

420515036822 is a wasteful number, since it uses less digits than its factorization.

420515036822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210257518413.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 420515036822 in words is "four hundred twenty billion, five hundred fifteen million, thirty-six thousand, eight hundred twenty-two".