187401086751381 has 16 divisors (see below), whose sum is σ = 258993181830144. Its totient is φ = 120450873155184.

The previous prime is 187401086751331. The next prime is 187401086751383. The reversal of 187401086751381 is 183157680104781.

187401086751381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 187401086751381 - 2¹⁷ = 187401086620309 is a prime.

It is a super-2 number, since 2×187401086751381² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187401086751383) 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, 9918540715 + ... + 9918559608.

It is an arithmetic number, because the mean of its divisors is an integer number (16187073864384).

Almost surely, 2^{187401086751381} is an apocalyptic number.

It is an amenable number.

187401086751381 is a deficient number, since it is larger than the sum of its proper divisors (71592095078763).

187401086751381 is a wasteful number, since it uses less digits than its factorization.

187401086751381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19837100440.

The product of its (nonzero) digits is 9031680, while the sum is 60.

The spelling of 187401086751381 in words is "one hundred eighty-seven trillion, four hundred one billion, eighty-six million, seven hundred fifty-one thousand, three hundred eighty-one".