1957480811 has 8 divisors (see below), whose sum is σ = 2299697904. Its totient is φ = 1642641120.

The previous prime is 1957480783. The next prime is 1957480817. The reversal of 1957480811 is 1180847591.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1957480811 - 2¹⁸ = 1957218667 is a prime.

It is a super-2 number, since 2×1957480811² = 7663462250866435442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1957480817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6844196 + ... + 6844481.

It is an arithmetic number, because the mean of its divisors is an integer number (287462238).

Almost surely, 2^1957480811 is an apocalyptic number.

1957480811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1957480811 is a deficient number, since it is larger than the sum of its proper divisors (342217093).

1957480811 is a wasteful number, since it uses less digits than its factorization.

1957480811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13688701.

The product of its (nonzero) digits is 80640, while the sum is 44.

The square root of 1957480811 is about 44243.4267547169. The cubic root of 1957480811 is about 1250.9285497455.

The spelling of 1957480811 in words is "one billion, nine hundred fifty-seven million, four hundred eighty thousand, eight hundred eleven".