3890948557780 has 24 divisors (see below), whose sum is σ = 8171358225408. Its totient is φ = 1556309660448.

The previous prime is 3890948557777. The next prime is 3890948557787. The reversal of 3890948557780 is 877558490983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3890948557787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3901644 + ... + 4796323.

It is an arithmetic number, because the mean of its divisors is an integer number (340473259392).

Almost surely, 2^{3890948557780} is an apocalyptic number.

It is an amenable number.

3890948557780 is an abundant number, since it is smaller than the sum of its proper divisors (4280409667628).

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

3890948557780 is a wasteful number, since it uses less digits than its factorization.

3890948557780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8720343 (or 8720341 counting only the distinct ones).

The product of its (nonzero) digits is 609638400, while the sum is 73.

The spelling of 3890948557780 in words is "three trillion, eight hundred ninety billion, nine hundred forty-eight million, five hundred fifty-seven thousand, seven hundred eighty".