4687690157 has 4 divisors (see below), whose sum is σ = 4687829916. Its totient is φ = 4687550400.

The previous prime is 4687690153. The next prime is 4687690199. The reversal of 4687690157 is 7510967864.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3474630916 + 1213059241 = 58946^2 + 34829^2 .

It is a cyclic number.

It is not a de Polignac number, because 4687690157 - 2² = 4687690153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4687690099 and 4687690108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4687690153) 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, 13973 + ... + 97829.

It is an arithmetic number, because the mean of its divisors is an integer number (1171957479).

Almost surely, 2^4687690157 is an apocalyptic number.

It is an amenable number.

4687690157 is a deficient number, since it is larger than the sum of its proper divisors (139759).

4687690157 is an equidigital number, since it uses as much as digits as its factorization.

4687690157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139758.

The product of its (nonzero) digits is 2540160, while the sum is 53.

The square root of 4687690157 is about 68466.7083844404. The cubic root of 4687690157 is about 1673.6050055415.

The spelling of 4687690157 in words is "four billion, six hundred eighty-seven million, six hundred ninety thousand, one hundred fifty-seven".