2857405324690 has 32 divisors (see below), whose sum is σ = 5878238189184. Its totient is φ = 979657286400.

The previous prime is 2857405324661. The next prime is 2857405324747. The reversal of 2857405324690 is 964235047582.

It is a happy number.

It is a super-2 number, since 2×2857405324690² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2422765 + ... + 3403615.

It is an arithmetic number, because the mean of its divisors is an integer number (183694943412).

Almost surely, 2^{2857405324690} is an apocalyptic number.

2857405324690 is an abundant number, since it is smaller than the sum of its proper divisors (3020832864494).

2857405324690 is a wasteful number, since it uses less digits than its factorization.

2857405324690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022482.

The product of its (nonzero) digits is 14515200, while the sum is 55.

The spelling of 2857405324690 in words is "two trillion, eight hundred fifty-seven billion, four hundred five million, three hundred twenty-four thousand, six hundred ninety".