421140887601 has 32 divisors (see below), whose sum is σ = 645862963200. Its totient is φ = 239106121344.

The previous prime is 421140887581. The next prime is 421140887653. The reversal of 421140887601 is 106788041124.

It is not a de Polignac number, because 421140887601 - 2¹³ = 421140879409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (421140888601) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13207125 + ... + 13238973.

It is an arithmetic number, because the mean of its divisors is an integer number (20183217600).

Almost surely, 2^421140887601 is an apocalyptic number.

It is an amenable number.

421140887601 is a deficient number, since it is larger than the sum of its proper divisors (224722075599).

421140887601 is a wasteful number, since it uses less digits than its factorization.

421140887601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35885.

The product of its (nonzero) digits is 86016, while the sum is 42.

The spelling of 421140887601 in words is "four hundred twenty-one billion, one hundred forty million, eight hundred eighty-seven thousand, six hundred one".