2007698157 has 10 divisors (see below), whose sum is σ = 2999154158. Its totient is φ = 1338465384.

The previous prime is 2007698111. The next prime is 2007698171. The reversal of 2007698157 is 7518967002.

It can be written as a sum of positive squares in only one way, i.e., 1181365641 + 826332516 = 34371^2 + 28746^2 .

It is not a de Polignac number, because 2007698157 - 2⁶ = 2007698093 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 (2007698857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 12393118 + ... + 12393279.

Almost surely, 2^2007698157 is an apocalyptic number.

2007698157 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

2007698157 is a deficient number, since it is larger than the sum of its proper divisors (991456001).

2007698157 is an equidigital number, since it uses as much as digits as its factorization.

2007698157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24786409 (or 24786400 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 2007698157 is about 44807.3449001389. The cubic root of 2007698157 is about 1261.5354919667.

The spelling of 2007698157 in words is "two billion, seven million, six hundred ninety-eight thousand, one hundred fifty-seven".