3750138861 has 16 divisors (see below), whose sum is σ = 5822319744. Its totient is φ = 2102503104.

The previous prime is 3750138859. The next prime is 3750138863. The reversal of 3750138861 is 1688310573.

It is an interprime number because it is at equal distance from previous prime (3750138859) and next prime (3750138863).

It is not a de Polignac number, because 3750138861 - 2¹ = 3750138859 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3750138863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1683586 + ... + 1685811.

It is an arithmetic number, because the mean of its divisors is an integer number (363894984).

Almost surely, 2^3750138861 is an apocalyptic number.

It is an amenable number.

3750138861 is a deficient number, since it is larger than the sum of its proper divisors (2072180883).

3750138861 is a wasteful number, since it uses less digits than its factorization.

3750138861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369460.

The product of its (nonzero) digits is 120960, while the sum is 42.

The square root of 3750138861 is about 61238.3773544009. The cubic root of 3750138861 is about 1553.6354293364.

The spelling of 3750138861 in words is "three billion, seven hundred fifty million, one hundred thirty-eight thousand, eight hundred sixty-one".