3457728890387 has 16 divisors (see below), whose sum is σ = 3779115993600. Its totient is φ = 3151115563680.

The previous prime is 3457728890381. The next prime is 3457728890419. The reversal of 3457728890387 is 7830988277543.

It is a cyclic number.

It is not a de Polignac number, because 3457728890387 - 2¹² = 3457728886291 is a prime.

It is a super-2 number, since 2×3457728890387² (a number of 26 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 3457728890387.

It is not an unprimeable number, because it can be changed into a prime (3457728890381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11428853 + ... + 11727494.

It is an arithmetic number, because the mean of its divisors is an integer number (236194749600).

Almost surely, 2^{3457728890387} is an apocalyptic number.

3457728890387 is a deficient number, since it is larger than the sum of its proper divisors (321387103213).

3457728890387 is a wasteful number, since it uses less digits than its factorization.

3457728890387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23156666.

The product of its (nonzero) digits is 568995840, while the sum is 71.

The spelling of 3457728890387 in words is "three trillion, four hundred fifty-seven billion, seven hundred twenty-eight million, eight hundred ninety thousand, three hundred eighty-seven".