19765481146 has 32 divisors (see below), whose sum is σ = 31373991936. Its totient is φ = 9323856000.

The previous prime is 19765481143. The next prime is 19765481147. The reversal of 19765481146 is 64118456791.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 19765481093 and 19765481102.

It is not an unprimeable number, because it can be changed into a prime (19765481143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5827111 + ... + 5830501.

It is an arithmetic number, because the mean of its divisors is an integer number (980437248).

Almost surely, 2^19765481146 is an apocalyptic number.

19765481146 is a deficient number, since it is larger than the sum of its proper divisors (11608510790).

19765481146 is a wasteful number, since it uses less digits than its factorization.

19765481146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758.

The product of its digits is 1451520, while the sum is 52.

The spelling of 19765481146 in words is "nineteen billion, seven hundred sixty-five million, four hundred eighty-one thousand, one hundred forty-six".