100626504281 has 2 divisors, whose sum is σ = 100626504282. Its totient is φ = 100626504280.

The previous prime is 100626504259. The next prime is 100626504337. The reversal of 100626504281 is 182405626001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58511255881 + 42115248400 = 241891^2 + 205220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100626504281 is a prime.

It is a super-2 number, since 2×100626504281² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100626501281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50313252140 + 50313252141.

It is an arithmetic number, because the mean of its divisors is an integer number (50313252141).

Almost surely, 2^100626504281 is an apocalyptic number.

It is an amenable number.

100626504281 is a deficient number, since it is larger than the sum of its proper divisors (1).

100626504281 is an equidigital number, since it uses as much as digits as its factorization.

100626504281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 35.

The spelling of 100626504281 in words is "one hundred billion, six hundred twenty-six million, five hundred four thousand, two hundred eighty-one".