100969511049 has 27 divisors (see below), whose sum is σ = 160325451559. Its totient is φ = 61187287920.

The previous prime is 100969511021. The next prime is 100969511081. The reversal of 100969511049 is 940115969001.

The square root of 100969511049 is 317757.

It is a perfect power (a square), and thus also a powerful number.

100969511049 is a `hidden beast` number, since 1 + 0 + 0 + 96 + 9 + 511 + 0 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 99923635449 + 1045875600 = 316107^2 + 32340^2 .

It is not a de Polignac number, because 100969511049 - 2¹⁹ = 100968986761 is a prime.

It is a super-2 number, since 2×100969511049² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100969510995 and 100969511013.

It is not an unprimeable number, because it can be changed into a prime (100969511249) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 10481167 + ... + 10490795.

Almost surely, 2^100969511049 is an apocalyptic number.

100969511049 is the 317757-th square number.

100969511049 is the 158879-th centered octagonal number.

It is an amenable number.

100969511049 is a deficient number, since it is larger than the sum of its proper divisors (59355940510).

100969511049 is an frugal number, since it uses more digits than its factorization.

100969511049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19286 (or 9643 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The spelling of 100969511049 in words is "one hundred billion, nine hundred sixty-nine million, five hundred eleven thousand, forty-nine".