1957892512493 has 2 divisors, whose sum is σ = 1957892512494. Its totient is φ = 1957892512492.

The previous prime is 1957892512483. The next prime is 1957892512523. The reversal of 1957892512493 is 3942152987591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1673822700169 + 284069812324 = 1293763^2 + 532982^2 .

It is a cyclic number.

It is not a de Polignac number, because 1957892512493 - 2¹⁶ = 1957892446957 is a prime.

It is a super-2 number, since 2×1957892512493² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1957892512483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978946256246 + 978946256247.

It is an arithmetic number, because the mean of its divisors is an integer number (978946256247).

Almost surely, 2^{1957892512493} is an apocalyptic number.

It is an amenable number.

1957892512493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957892512493 is an equidigital number, since it uses as much as digits as its factorization.

1957892512493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48988800, while the sum is 65.

The spelling of 1957892512493 in words is "one trillion, nine hundred fifty-seven billion, eight hundred ninety-two million, five hundred twelve thousand, four hundred ninety-three".