428015050293 has 4 divisors (see below), whose sum is σ = 570686733728. Its totient is φ = 285343366860.

The previous prime is 428015050277. The next prime is 428015050319. The reversal of 428015050293 is 392050510824.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 428015050293 - 2⁴ = 428015050277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428015050493) 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, 71335841713 + ... + 71335841718.

It is an arithmetic number, because the mean of its divisors is an integer number (142671683432).

Almost surely, 2^428015050293 is an apocalyptic number.

It is an amenable number.

428015050293 is a deficient number, since it is larger than the sum of its proper divisors (142671683435).

428015050293 is a wasteful number, since it uses less digits than its factorization.

428015050293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142671683434.

The product of its (nonzero) digits is 86400, while the sum is 39.

The spelling of 428015050293 in words is "four hundred twenty-eight billion, fifteen million, fifty thousand, two hundred ninety-three".