5155309691 has 16 divisors (see below), whose sum is σ = 6216268800. Its totient is φ = 4176551808.

The previous prime is 5155309681. The next prime is 5155309697. The reversal of 5155309691 is 1969035515.

It is a cyclic number.

It is not a de Polignac number, because 5155309691 - 2¹⁴ = 5155293307 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5155309697) 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, 12830 + ... + 102348.

It is an arithmetic number, because the mean of its divisors is an integer number (388516800).

Almost surely, 2^5155309691 is an apocalyptic number.

5155309691 is a deficient number, since it is larger than the sum of its proper divisors (1060959109).

5155309691 is a wasteful number, since it uses less digits than its factorization.

5155309691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89978.

The product of its (nonzero) digits is 182250, while the sum is 44.

The square root of 5155309691 is about 71800.4853117303. The cubic root of 5155309691 is about 1727.5007840169.

The spelling of 5155309691 in words is "five billion, one hundred fifty-five million, three hundred nine thousand, six hundred ninety-one".