421154948972 has 6 divisors (see below), whose sum is σ = 737021160708. Its totient is φ = 210577474484.

The previous prime is 421154948971. The next prime is 421154948983. The reversal of 421154948972 is 279849451124.

It is not an unprimeable number, because it can be changed into a prime (421154948971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52644368618 + ... + 52644368625.

It is an arithmetic number, because the mean of its divisors is an integer number (122836860118).

Almost surely, 2^421154948972 is an apocalyptic number.

It is an amenable number.

421154948972 is a deficient number, since it is larger than the sum of its proper divisors (315866211736).

421154948972 is a wasteful number, since it uses less digits than its factorization.

421154948972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105288737247 (or 105288737245 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The spelling of 421154948972 in words is "four hundred twenty-one billion, one hundred fifty-four million, nine hundred forty-eight thousand, nine hundred seventy-two".