420620979552 has 96 divisors (see below), whose sum is σ = 1108215924480. Its totient is φ = 139688962560.

The previous prime is 420620979523. The next prime is 420620979553. The reversal of 420620979552 is 255979026024.

It is a tau number, because it is divible by the number of its divisors (96).

It is a junction number, because it is equal to n+sod(n) for n = 420620979495 and 420620979504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420620979553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37506298 + ... + 37517510.

It is an arithmetic number, because the mean of its divisors is an integer number (11543915880).

Almost surely, 2^420620979552 is an apocalyptic number.

It is an amenable number.

420620979552 is an abundant number, since it is smaller than the sum of its proper divisors (687594944928).

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

420620979552 is a wasteful number, since it uses less digits than its factorization.

420620979552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12636 (or 12628 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 420620979552 in words is "four hundred twenty billion, six hundred twenty million, nine hundred seventy-nine thousand, five hundred fifty-two".