3918591742 has 16 divisors (see below), whose sum is σ = 6605252640. Its totient is φ = 1729946592.

The previous prime is 3918591727. The next prime is 3918591773. The reversal of 3918591742 is 2471958193.

It is a happy number.

It is a super-2 number, since 2×3918591742² = 30710722480941189128, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3275817 + ... + 3277012.

It is an arithmetic number, because the mean of its divisors is an integer number (412828290).

Almost surely, 2^3918591742 is an apocalyptic number.

3918591742 is a deficient number, since it is larger than the sum of its proper divisors (2686660898).

3918591742 is a wasteful number, since it uses less digits than its factorization.

3918591742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6552867.

The product of its digits is 544320, while the sum is 49.

The square root of 3918591742 is about 62598.6560718359. The cubic root of 3918591742 is about 1576.5581948169.

The spelling of 3918591742 in words is "three billion, nine hundred eighteen million, five hundred ninety-one thousand, seven hundred forty-two".