9944879751051 has 64 divisors (see below), whose sum is σ = 15574709154816. Its totient is φ = 5527283904000.

The previous prime is 9944879751049. The next prime is 9944879751073. The reversal of 9944879751051 is 1501579784499.

9944879751051 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 9944879751051 - 2¹ = 9944879751049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9944879751011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 103068436 + ... + 103164878.

It is an arithmetic number, because the mean of its divisors is an integer number (243354830544).

Almost surely, 2^{9944879751051} is an apocalyptic number.

9944879751051 is a deficient number, since it is larger than the sum of its proper divisors (5629829403765).

9944879751051 is a wasteful number, since it uses less digits than its factorization.

9944879751051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97412.

The product of its (nonzero) digits is 114307200, while the sum is 69.

The spelling of 9944879751051 in words is "nine trillion, nine hundred forty-four billion, eight hundred seventy-nine million, seven hundred fifty-one thousand, fifty-one".