421146742757 has 8 divisors (see below), whose sum is σ = 454299820800. Its totient is φ = 388101832560.

The previous prime is 421146742747. The next prime is 421146742759. The reversal of 421146742757 is 757247641124.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 421146742757 - 2⁸ = 421146742501 is a prime.

It is a super-2 number, since 2×421146742757² (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 (421146742759) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27033869 + ... + 27049442.

It is an arithmetic number, because the mean of its divisors is an integer number (56787477600).

Almost surely, 2^421146742757 is an apocalyptic number.

It is an amenable number.

421146742757 is a deficient number, since it is larger than the sum of its proper divisors (33153078043).

421146742757 is a wasteful number, since it uses less digits than its factorization.

421146742757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54083923.

The product of its digits is 2634240, while the sum is 50.

The spelling of 421146742757 in words is "four hundred twenty-one billion, one hundred forty-six million, seven hundred forty-two thousand, seven hundred fifty-seven".