349542770687 has 32 divisors (see below), whose sum is σ = 401319788544. Its totient is φ = 301340239200.

The previous prime is 349542770659. The next prime is 349542770713. The reversal of 349542770687 is 786077245943.

It is not a de Polignac number, because 349542770687 - 2⁸ = 349542770431 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 (349542770987) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58186238 + ... + 58192244.

It is an arithmetic number, because the mean of its divisors is an integer number (12541243392).

Almost surely, 2^349542770687 is an apocalyptic number.

349542770687 is a deficient number, since it is larger than the sum of its proper divisors (51777017857).

349542770687 is a wasteful number, since it uses less digits than its factorization.

349542770687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7979.

The product of its (nonzero) digits is 71124480, while the sum is 62.

The spelling of 349542770687 in words is "three hundred forty-nine billion, five hundred forty-two million, seven hundred seventy thousand, six hundred eighty-seven".