2608195491 has 32 divisors (see below), whose sum is σ = 4253990400. Its totient is φ = 1566203040.

The previous prime is 2608195489. The next prime is 2608195501. The reversal of 2608195491 is 1945918062.

2608195491 is a `hidden beast` number, since 26 + 0 + 81 + 9 + 549 + 1 = 666.

It is not a de Polignac number, because 2608195491 - 2¹ = 2608195489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2608195411) 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, 7911 + ... + 72656.

It is an arithmetic number, because the mean of its divisors is an integer number (132937200).

Almost surely, 2^2608195491 is an apocalyptic number.

2608195491 is a deficient number, since it is larger than the sum of its proper divisors (1645794909).

2608195491 is a wasteful number, since it uses less digits than its factorization.

2608195491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80696 (or 80690 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 2608195491 is about 51070.4953079564. The cubic root of 2608195491 is about 1376.5121420036.

The spelling of 2608195491 in words is "two billion, six hundred eight million, one hundred ninety-five thousand, four hundred ninety-one".