420247065572 has 6 divisors (see below), whose sum is σ = 735432364758. Its totient is φ = 210123532784.

The previous prime is 420247065517. The next prime is 420247065599. The reversal of 420247065572 is 275560742024.

It can be written as a sum of positive squares in only one way, i.e., 261728420836 + 158518644736 = 511594^2 + 398144^2 .

It is a super-2 number, since 2×420247065572² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52530883193 + ... + 52530883200.

It is an arithmetic number, because the mean of its divisors is an integer number (122572060793).

Almost surely, 2^420247065572 is an apocalyptic number.

It is an amenable number.

420247065572 is a deficient number, since it is larger than the sum of its proper divisors (315185299186).

420247065572 is a wasteful number, since it uses less digits than its factorization.

420247065572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105061766397 (or 105061766395 counting only the distinct ones).

The product of its (nonzero) digits is 940800, while the sum is 44.

The spelling of 420247065572 in words is "four hundred twenty billion, two hundred forty-seven million, sixty-five thousand, five hundred seventy-two".