420121767090 has 32 divisors (see below), whose sum is σ = 1015989137856. Its totient is φ = 111177260480.

The previous prime is 420121767089. The next prime is 420121767113. The reversal of 420121767090 is 90767121024.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53446677 + ... + 53454536.

It is an arithmetic number, because the mean of its divisors is an integer number (31749660558).

Almost surely, 2^420121767090 is an apocalyptic number.

420121767090 is an abundant number, since it is smaller than the sum of its proper divisors (595867370766).

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

420121767090 is a wasteful number, since it uses less digits than its factorization.

420121767090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106901354.

The product of its (nonzero) digits is 42336, while the sum is 39.

The spelling of 420121767090 in words is "four hundred twenty billion, one hundred twenty-one million, seven hundred sixty-seven thousand, ninety".