1957312899330 has 32 divisors (see below), whose sum is σ = 4704084460800. Its totient is φ = 521224161792.

The previous prime is 1957312899323. The next prime is 1957312899331. The reversal of 1957312899330 is 339982137591.

It is a super-2 number, since 2×1957312899330² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1957312899331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45349615 + ... + 45392754.

It is an arithmetic number, because the mean of its divisors is an integer number (147002639400).

Almost surely, 2^{1957312899330} is an apocalyptic number.

1957312899330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1957312899330 is an abundant number, since it is smaller than the sum of its proper divisors (2746771561470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1957312899330 is a wasteful number, since it uses less digits than its factorization.

1957312899330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90743098.

The product of its (nonzero) digits is 11022480, while the sum is 60.

The spelling of 1957312899330 in words is "one trillion, nine hundred fifty-seven billion, three hundred twelve million, eight hundred ninety-nine thousand, three hundred thirty".