157144442893 has 2 divisors, whose sum is σ = 157144442894. Its totient is φ = 157144442892.

The previous prime is 157144442867. The next prime is 157144442921. The reversal of 157144442893 is 398244441751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155983132809 + 1161310084 = 394947^2 + 34078^2 .

It is a cyclic number.

It is not a de Polignac number, because 157144442893 - 2¹³ = 157144434701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157144442893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157144442813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78572221446 + 78572221447.

It is an arithmetic number, because the mean of its divisors is an integer number (78572221447).

Almost surely, 2^157144442893 is an apocalyptic number.

It is an amenable number.

157144442893 is a deficient number, since it is larger than the sum of its proper divisors (1).

157144442893 is an equidigital number, since it uses as much as digits as its factorization.

157144442893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3870720, while the sum is 52.

The spelling of 157144442893 in words is "one hundred fifty-seven billion, one hundred forty-four million, four hundred forty-two thousand, eight hundred ninety-three".