4691698157 has 4 divisors (see below), whose sum is σ = 4738150716. Its totient is φ = 4645245600.

The previous prime is 4691698153. The next prime is 4691698169. The reversal of 4691698157 is 7518961964.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2325264841 + 2366433316 = 48221^2 + 48646^2 .

It is a cyclic number.

It is not a de Polignac number, because 4691698157 - 2² = 4691698153 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4691698153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23226128 + ... + 23226329.

It is an arithmetic number, because the mean of its divisors is an integer number (1184537679).

Almost surely, 2^4691698157 is an apocalyptic number.

It is an amenable number.

4691698157 is a deficient number, since it is larger than the sum of its proper divisors (46452559).

4691698157 is a wasteful number, since it uses less digits than its factorization.

4691698157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46452558.

The product of its digits is 3265920, while the sum is 56.

The square root of 4691698157 is about 68495.9718304661. The cubic root of 4691698157 is about 1674.0818500575.

The spelling of 4691698157 in words is "four billion, six hundred ninety-one million, six hundred ninety-eight thousand, one hundred fifty-seven".