107610621781 has 16 divisors (see below), whose sum is σ = 116419092160. Its totient is φ = 98878993920.

The previous prime is 107610621763. The next prime is 107610621787. The reversal of 107610621781 is 187126016701.

It is a cyclic number.

It is not a de Polignac number, because 107610621781 - 2⁷ = 107610621653 is a prime.

It is a super-2 number, since 2×107610621781² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (107610621787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2555941 + ... + 2597701.

It is an arithmetic number, because the mean of its divisors is an integer number (7276193260).

Almost surely, 2^107610621781 is an apocalyptic number.

It is an amenable number.

107610621781 is a deficient number, since it is larger than the sum of its proper divisors (8808470379).

107610621781 is a wasteful number, since it uses less digits than its factorization.

107610621781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42676.

The product of its (nonzero) digits is 28224, while the sum is 40.

The spelling of 107610621781 in words is "one hundred seven billion, six hundred ten million, six hundred twenty-one thousand, seven hundred eighty-one".