3945780090995 has 8 divisors (see below), whose sum is σ = 5013461762784. Its totient is φ = 2970940303744.

The previous prime is 3945780090991. The next prime is 3945780090997. The reversal of 3945780090995 is 5990900875493.

3945780090995 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3945780090995 - 2² = 3945780090991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3945780090991) 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, 23210471039 + ... + 23210471208.

It is an arithmetic number, because the mean of its divisors is an integer number (626682720348).

Almost surely, 2^{3945780090995} is an apocalyptic number.

3945780090995 is a deficient number, since it is larger than the sum of its proper divisors (1067681671789).

3945780090995 is a wasteful number, since it uses less digits than its factorization.

3945780090995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46420942269.

The product of its (nonzero) digits is 110224800, while the sum is 68.

The spelling of 3945780090995 in words is "three trillion, nine hundred forty-five billion, seven hundred eighty million, ninety thousand, nine hundred ninety-five".