3755481969987 has 48 divisors (see below), whose sum is σ = 6114984984576. Its totient is φ = 2202626991600.

The previous prime is 3755481969983. The next prime is 3755481970027. The reversal of 3755481969987 is 7899691845573.

3755481969987 is a `hidden beast` number, since 3 + 7 + 5 + 548 + 1 + 9 + 69 + 9 + 8 + 7 = 666.

It is not a de Polignac number, because 3755481969987 - 2² = 3755481969983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3755481969983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2312638 + ... + 3585980.

It is an arithmetic number, because the mean of its divisors is an integer number (127395520512).

Almost surely, 2^{3755481969987} is an apocalyptic number.

3755481969987 is a deficient number, since it is larger than the sum of its proper divisors (2359503014589).

3755481969987 is a wasteful number, since it uses less digits than its factorization.

3755481969987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273453 (or 1273388 counting only the distinct ones).

The product of its digits is 4115059200, while the sum is 81.

The spelling of 3755481969987 in words is "three trillion, seven hundred fifty-five billion, four hundred eighty-one million, nine hundred sixty-nine thousand, nine hundred eighty-seven".