421776130372 has 12 divisors (see below), whose sum is σ = 756110868156. Its totient is φ = 205744453760.

The previous prime is 421776130367. The next prime is 421776130397. The reversal of 421776130372 is 273031677124.

It can be written as a sum of positive squares in 2 ways, for example, as 113957555776 + 307818574596 = 337576^2 + 554814^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285902673 + ... + 1285903000.

It is an arithmetic number, because the mean of its divisors is an integer number (63009239013).

Almost surely, 2^421776130372 is an apocalyptic number.

It is an amenable number.

421776130372 is a deficient number, since it is larger than the sum of its proper divisors (334334737784).

421776130372 is a wasteful number, since it uses less digits than its factorization.

421776130372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571805718 (or 2571805716 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 43.

The spelling of 421776130372 in words is "four hundred twenty-one billion, seven hundred seventy-six million, one hundred thirty thousand, three hundred seventy-two".