1957861023 has 8 divisors (see below), whose sum is σ = 2747875200. Its totient is φ = 1236543768.

The previous prime is 1957861019. The next prime is 1957861051. The reversal of 1957861023 is 3201687591.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1957861023 - 2² = 1957861019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1957861123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17174163 + ... + 17174276.

It is an arithmetic number, because the mean of its divisors is an integer number (343484400).

Almost surely, 2^1957861023 is an apocalyptic number.

1957861023 is a deficient number, since it is larger than the sum of its proper divisors (790014177).

1957861023 is a wasteful number, since it uses less digits than its factorization.

1957861023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34348461.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1957861023 is about 44247.7233651631. The cubic root of 1957861023 is about 1251.0095360235.

It can be divided in two parts, 19578 and 61023, that added together give a triangular number (80601 = T₄₀₁).

The spelling of 1957861023 in words is "one billion, nine hundred fifty-seven million, eight hundred sixty-one thousand, twenty-three".