5161957942 has 8 divisors (see below), whose sum is σ = 8079586416. Its totient is φ = 2468762472.

The previous prime is 5161957897. The next prime is 5161957993. The reversal of 5161957942 is 2497591615.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56108193 + ... + 56108284.

It is an arithmetic number, because the mean of its divisors is an integer number (1009948302).

Almost surely, 2^5161957942 is an apocalyptic number.

5161957942 is a deficient number, since it is larger than the sum of its proper divisors (2917628474).

5161957942 is a wasteful number, since it uses less digits than its factorization.

5161957942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112216502.

The product of its digits is 680400, while the sum is 49.

The square root of 5161957942 is about 71846.7670949779. The cubic root of 5161957942 is about 1728.2430559725.

It can be divided in two parts, 51619 and 57942, that added together give a square (109561 = 331²).

The spelling of 5161957942 in words is "five billion, one hundred sixty-one million, nine hundred fifty-seven thousand, nine hundred forty-two".