1957273923 has 32 divisors (see below), whose sum is σ = 3008102400. Its totient is φ = 1119549600.

The previous prime is 1957273921. The next prime is 1957273943. The reversal of 1957273923 is 3293727591.

It is not a de Polignac number, because 1957273923 - 2¹ = 1957273921 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1957273921) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164158 + ... + 175676.

It is an arithmetic number, because the mean of its divisors is an integer number (94003200).

Almost surely, 2^1957273923 is an apocalyptic number.

1957273923 is a deficient number, since it is larger than the sum of its proper divisors (1050828477).

1957273923 is a wasteful number, since it uses less digits than its factorization.

1957273923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11823.

The product of its digits is 714420, while the sum is 48.

The square root of 1957273923 is about 44241.0886281068. The cubic root of 1957273923 is about 1250.8844775852.

The spelling of 1957273923 in words is "one billion, nine hundred fifty-seven million, two hundred seventy-three thousand, nine hundred twenty-three".