3900851555103 has 6 divisors (see below), whose sum is σ = 5634563357384. Its totient is φ = 2600567703396.

The previous prime is 3900851555087. The next prime is 3900851555119. The reversal of 3900851555103 is 3015551580093.

3900851555103 is a `hidden beast` number, since 3 + 9 + 0 + 0 + 85 + 1 + 55 + 510 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (3900851555087) and next prime (3900851555119).

It is not a de Polignac number, because 3900851555103 - 2⁴ = 3900851555087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3900851555203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 216713975275 + ... + 216713975292.

Almost surely, 2^{3900851555103} is an apocalyptic number.

3900851555103 is a deficient number, since it is larger than the sum of its proper divisors (1733711802281).

3900851555103 is a wasteful number, since it uses less digits than its factorization.

3900851555103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433427950573 (or 433427950570 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 45.

The spelling of 3900851555103 in words is "three trillion, nine hundred billion, eight hundred fifty-one million, five hundred fifty-five thousand, one hundred three".