1963777278660 has 48 divisors (see below), whose sum is σ = 5500345502400. Its totient is φ = 523505453184.

The previous prime is 1963777278647. The next prime is 1963777278667. The reversal of 1963777278660 is 668727773691.

It is not an unprimeable number, because it can be changed into a prime (1963777278667) 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, 5077150 + ... + 5450229.

It is an arithmetic number, because the mean of its divisors is an integer number (114590531300).

Almost surely, 2^{1963777278660} is an apocalyptic number.

1963777278660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1963777278660 is an abundant number, since it is smaller than the sum of its proper divisors (3536568223740).

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

1963777278660 is a wasteful number, since it uses less digits than its factorization.

1963777278660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10530500 (or 10530498 counting only the distinct ones).

The product of its (nonzero) digits is 224042112, while the sum is 69.

The spelling of 1963777278660 in words is "one trillion, nine hundred sixty-three billion, seven hundred seventy-seven million, two hundred seventy-eight thousand, six hundred sixty".