420989623370 has 16 divisors (see below), whose sum is σ = 765593502408. Its totient is φ = 166659809280.

The previous prime is 420989623337. The next prime is 420989623403. The reversal of 420989623370 is 73326989024.

It is an interprime number because it is at equal distance from previous prime (420989623337) and next prime (420989623403).

It can be written as a sum of positive squares in 4 ways, for example, as 393476434729 + 27513188641 = 627277^2 + 165871^2 .

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 7 ways as a sum of consecutive naturals, for example, 217003991 + ... + 217005930.

Almost surely, 2^420989623370 is an apocalyptic number.

420989623370 is a deficient number, since it is larger than the sum of its proper divisors (344603879038).

420989623370 is a wasteful number, since it uses less digits than its factorization.

420989623370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 434010025.

The product of its (nonzero) digits is 3919104, while the sum is 53.

The spelling of 420989623370 in words is "four hundred twenty billion, nine hundred eighty-nine million, six hundred twenty-three thousand, three hundred seventy".