420152445631 has 16 divisors (see below), whose sum is σ = 446061600000. Its totient is φ = 394377084288.

The previous prime is 420152445623. The next prime is 420152445641. The reversal of 420152445631 is 136544251024.

It is a cyclic number.

It is not a de Polignac number, because 420152445631 - 2³ = 420152445623 is a prime.

It is a super-2 number, since 2×420152445631² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420152445641) 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, 13073220 + ... + 13105318.

It is an arithmetic number, because the mean of its divisors is an integer number (27878850000).

Almost surely, 2^420152445631 is an apocalyptic number.

420152445631 is a deficient number, since it is larger than the sum of its proper divisors (25909154369).

420152445631 is a wasteful number, since it uses less digits than its factorization.

420152445631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34158.

The product of its (nonzero) digits is 115200, while the sum is 37.

Adding to 420152445631 its reverse (136544251024), we get a palindrome (556696696655).

It can be divided in two parts, 4201524 and 45631, that added together give a triangular number (4247155 = T₂₉₁₄).

The spelling of 420152445631 in words is "four hundred twenty billion, one hundred fifty-two million, four hundred forty-five thousand, six hundred thirty-one".