421429807057 has 8 divisors (see below), whose sum is σ = 484588876736. Its totient is φ = 359009440272.

The previous prime is 421429807037. The next prime is 421429807061. The reversal of 421429807057 is 750708924124.

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

It is not a de Polignac number, because 421429807057 - 2³⁵ = 387070068689 is a prime.

It is a super-2 number, since 2×421429807057² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 421429807057.

It is not an unprimeable number, because it can be changed into a prime (421429807027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184674498 + ... + 184676779.

It is an arithmetic number, because the mean of its divisors is an integer number (60573609592).

Almost surely, 2^421429807057 is an apocalyptic number.

It is an amenable number.

421429807057 is a deficient number, since it is larger than the sum of its proper divisors (63159069679).

421429807057 is a wasteful number, since it uses less digits than its factorization.

421429807057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369351447.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 421429807057 in words is "four hundred twenty-one billion, four hundred twenty-nine million, eight hundred seven thousand, fifty-seven".