420130178767 has 4 divisors (see below), whose sum is σ = 452447884840. Its totient is φ = 387812472696.

The previous prime is 420130178729. The next prime is 420130178821. The reversal of 420130178767 is 767871031024.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 420130178767 - 2²³ = 420121790159 is a prime.

It is a super-2 number, since 2×420130178767² (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 (420130178267) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16158853017 + ... + 16158853042.

It is an arithmetic number, because the mean of its divisors is an integer number (113111971210).

Almost surely, 2^420130178767 is an apocalyptic number.

420130178767 is a deficient number, since it is larger than the sum of its proper divisors (32317706073).

420130178767 is a wasteful number, since it uses less digits than its factorization.

420130178767 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32317706072.

The product of its (nonzero) digits is 395136, while the sum is 46.

The spelling of 420130178767 in words is "four hundred twenty billion, one hundred thirty million, one hundred seventy-eight thousand, seven hundred sixty-seven".