196782949545 has 64 divisors (see below), whose sum is σ = 404359409664. Its totient is φ = 79427715840.

The previous prime is 196782949529. The next prime is 196782949567. The reversal of 196782949545 is 545949287691.

It is not a de Polignac number, because 196782949545 - 2⁴ = 196782949529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (69).

It is a self number, because there is not a number n which added to its sum of digits gives 196782949545.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3102591 + ... + 3165380.

It is an arithmetic number, because the mean of its divisors is an integer number (6318115776).

Almost surely, 2^196782949545 is an apocalyptic number.

196782949545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

196782949545 is an abundant number, since it is smaller than the sum of its proper divisors (207576460119).

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

196782949545 is a wasteful number, since it uses less digits than its factorization.

196782949545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6268022.

The product of its digits is 195955200, while the sum is 69.

The spelling of 196782949545 in words is "one hundred ninety-six billion, seven hundred eighty-two million, nine hundred forty-nine thousand, five hundred forty-five".