157898000693 has 2 divisors, whose sum is σ = 157898000694. Its totient is φ = 157898000692.

The previous prime is 157898000681. The next prime is 157898000717. The reversal of 157898000693 is 396000898751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154809197764 + 3088802929 = 393458^2 + 55577^2 .

It is a cyclic number.

It is not a de Polignac number, because 157898000693 - 2⁴ = 157898000677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157898000093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78949000346 + 78949000347.

It is an arithmetic number, because the mean of its divisors is an integer number (78949000347).

Almost surely, 2^157898000693 is an apocalyptic number.

It is an amenable number.

157898000693 is a deficient number, since it is larger than the sum of its proper divisors (1).

157898000693 is an equidigital number, since it uses as much as digits as its factorization.

157898000693 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 157898000693 in words is "one hundred fifty-seven billion, eight hundred ninety-eight million, six hundred ninety-three", and thus it is an aban number.