196435689973440 has 56 divisors (see below), whose sum is σ = 623683315668720. Its totient is φ = 52382850659328.

The previous prime is 196435689973427. The next prime is 196435689973487. The reversal of 196435689973440 is 44379986534691.

It is a super-2 number, since 2×196435689973440² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102310254235 + ... + 102310256154.

Almost surely, 2^{196435689973440} is an apocalyptic number.

196435689973440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

196435689973440 is an abundant number, since it is smaller than the sum of its proper divisors (427247625695280).

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

196435689973440 is a wasteful number, since it uses less digits than its factorization.

196435689973440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204620510409 (or 204620510399 counting only the distinct ones).

The product of its (nonzero) digits is 4232632320, while the sum is 78.

The spelling of 196435689973440 in words is "one hundred ninety-six trillion, four hundred thirty-five billion, six hundred eighty-nine million, nine hundred seventy-three thousand, four hundred forty".