1913480811 has 36 divisors (see below), whose sum is σ = 3060122520. Its totient is φ = 1151251200.

The previous prime is 1913480773. The next prime is 1913480819. The reversal of 1913480811 is 1180843191.

It is not a de Polignac number, because 1913480811 - 2⁷ = 1913480683 is a prime.

It is a super-2 number, since 2×1913480811² = 7322817628130435442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913480819) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 145051 + ... + 157691.

Almost surely, 2^1913480811 is an apocalyptic number.

1913480811 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1913480811 is a deficient number, since it is larger than the sum of its proper divisors (1146641709).

1913480811 is a wasteful number, since it uses less digits than its factorization.

1913480811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12808 (or 12794 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 36.

The square root of 1913480811 is about 43743.3516205606. The cubic root of 1913480811 is about 1241.4846964195.

The spelling of 1913480811 in words is "one billion, nine hundred thirteen million, four hundred eighty thousand, eight hundred eleven".