100245612499 has 4 divisors (see below), whose sum is σ = 102690627480. Its totient is φ = 97800597520.

The previous prime is 100245612421. The next prime is 100245612521. The reversal of 100245612499 is 994216542001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 994216542001 = 79 ⋅12585019519.

It is a cyclic number.

It is not a de Polignac number, because 100245612499 - 2⁷ = 100245612371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100245612199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222507429 + ... + 1222507510.

It is an arithmetic number, because the mean of its divisors is an integer number (25672656870).

Almost surely, 2^100245612499 is an apocalyptic number.

100245612499 is a deficient number, since it is larger than the sum of its proper divisors (2445014981).

100245612499 is an equidigital number, since it uses as much as digits as its factorization.

100245612499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2445014980.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 100245612499 in words is "one hundred billion, two hundred forty-five million, six hundred twelve thousand, four hundred ninety-nine".