2157099635 has 8 divisors (see below), whose sum is σ = 2624978016. Its totient is φ = 1701374080.

The previous prime is 2157099613. The next prime is 2157099653. The reversal of 2157099635 is 5369907512.

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

It is not a de Polignac number, because 2157099635 - 2¹² = 2157095539 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2157099635.

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, 3037814 + ... + 3038523.

It is an arithmetic number, because the mean of its divisors is an integer number (328122252).

Almost surely, 2^2157099635 is an apocalyptic number.

2157099635 is a deficient number, since it is larger than the sum of its proper divisors (467878381).

2157099635 is an equidigital number, since it uses as much as digits as its factorization.

2157099635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6076413.

The product of its (nonzero) digits is 510300, while the sum is 47.

The square root of 2157099635 is about 46444.5867136311. The cubic root of 2157099635 is about 1292.0819764384.

The spelling of 2157099635 in words is "two billion, one hundred fifty-seven million, ninety-nine thousand, six hundred thirty-five".