1977374470000 has 50 divisors (see below), whose sum is σ = 4787421353528. Its totient is φ = 790949784000.

The previous prime is 1977374469911. The next prime is 1977374470031. The reversal of 1977374470000 is 744737791.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 98858724 + ... + 98878723.

Almost surely, 2^{1977374470000} is an apocalyptic number.

1977374470000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1977374470000 is an abundant number, since it is smaller than the sum of its proper divisors (2810046883528).

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

1977374470000 is an equidigital number, since it uses as much as digits as its factorization.

1977374470000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197737475 (or 197737454 counting only the distinct ones).

The product of its (nonzero) digits is 1037232, while the sum is 49.

The spelling of 1977374470000 in words is "one trillion, nine hundred seventy-seven billion, three hundred seventy-four million, four hundred seventy thousand".