1964776139900 has 72 divisors (see below), whose sum is σ = 4877204818080. Its totient is φ = 673007120640.

The previous prime is 1964776139881. The next prime is 1964776139923. The reversal of 1964776139900 is 99316774691.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 564527 + ... + 2061126.

Almost surely, 2^{1964776139900} is an apocalyptic number.

1964776139900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1964776139900 is an abundant number, since it is smaller than the sum of its proper divisors (2912428678180).

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

1964776139900 is a wasteful number, since it uses less digits than its factorization.

1964776139900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2626743 (or 2626736 counting only the distinct ones).

The product of its (nonzero) digits is 15431472, while the sum is 62.

The spelling of 1964776139900 in words is "one trillion, nine hundred sixty-four billion, seven hundred seventy-six million, one hundred thirty-nine thousand, nine hundred".