1913847645 has 16 divisors (see below), whose sum is σ = 3062996352. Its totient is φ = 1020438720.

The previous prime is 1913847631. The next prime is 1913847647. The reversal of 1913847645 is 5467483191.

It is not a de Polignac number, because 1913847645 - 2⁵ = 1913847613 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1913847594 and 1913847603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913847647) 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, 46560 + ... + 77430.

It is an arithmetic number, because the mean of its divisors is an integer number (191437272).

Almost surely, 2^1913847645 is an apocalyptic number.

1913847645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1913847645 is a deficient number, since it is larger than the sum of its proper divisors (1149148707).

1913847645 is a wasteful number, since it uses less digits than its factorization.

1913847645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35012.

The product of its digits is 725760, while the sum is 48.

The square root of 1913847645 is about 43747.5444453743. The cubic root of 1913847645 is about 1241.5640264891.

The spelling of 1913847645 in words is "one billion, nine hundred thirteen million, eight hundred forty-seven thousand, six hundred forty-five".