100745047442 has 64 divisors (see below), whose sum is σ = 179958240000. Its totient is φ = 41851738368.

The previous prime is 100745047421. The next prime is 100745047457. The reversal of 100745047442 is 244740547001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 100745047396 and 100745047405.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1663184 + ... + 1722692.

It is an arithmetic number, because the mean of its divisors is an integer number (2811847500).

Almost surely, 2^100745047442 is an apocalyptic number.

100745047442 is a deficient number, since it is larger than the sum of its proper divisors (79213192558).

100745047442 is a wasteful number, since it uses less digits than its factorization.

100745047442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59715.

The product of its (nonzero) digits is 125440, while the sum is 38.

The spelling of 100745047442 in words is "one hundred billion, seven hundred forty-five million, forty-seven thousand, four hundred forty-two".