420673325664 has 48 divisors (see below), whose sum is σ = 1111580547840. Its totient is φ = 139295798400.

The previous prime is 420673325629. The next prime is 420673325713. The reversal of 420673325664 is 466523376024.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-3 number, since 3×420673325664³ (a number of 36 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14495484 + ... + 14524475.

It is an arithmetic number, because the mean of its divisors is an integer number (23157928080).

Almost surely, 2^420673325664 is an apocalyptic number.

It is an amenable number.

420673325664 is an abundant number, since it is smaller than the sum of its proper divisors (690907222176).

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

420673325664 is a wasteful number, since it uses less digits than its factorization.

420673325664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29020123 (or 29020115 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 48.

The spelling of 420673325664 in words is "four hundred twenty billion, six hundred seventy-three million, three hundred twenty-five thousand, six hundred sixty-four".