100642434439 has 2 divisors, whose sum is σ = 100642434440. Its totient is φ = 100642434438.

The previous prime is 100642434401. The next prime is 100642434499. The reversal of 100642434439 is 934434246001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100642434439 - 2¹⁷ = 100642303367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100642434499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50321217219 + 50321217220.

It is an arithmetic number, because the mean of its divisors is an integer number (50321217220).

Almost surely, 2^100642434439 is an apocalyptic number.

100642434439 is a deficient number, since it is larger than the sum of its proper divisors (1).

100642434439 is an equidigital number, since it uses as much as digits as its factorization.

100642434439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 100642434439 in words is "one hundred billion, six hundred forty-two million, four hundred thirty-four thousand, four hundred thirty-nine".