101749408603919 has 4 divisors (see below), whose sum is σ = 101749538980896. Its totient is φ = 101749278226944.

The previous prime is 101749408603903. The next prime is 101749408603943. The reversal of 101749408603919 is 919306804947101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101749408603919 - 2⁴ = 101749408603903 is a prime.

It is a super-2 number, since 2×101749408603919² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101749408303919) 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, 64010759 + ... + 65581064.

It is an arithmetic number, because the mean of its divisors is an integer number (25437384745224).

Almost surely, 2^{101749408603919} is an apocalyptic number.

101749408603919 is a deficient number, since it is larger than the sum of its proper divisors (130376977).

101749408603919 is an equidigital number, since it uses as much as digits as its factorization.

101749408603919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130376976.

The product of its (nonzero) digits is 11757312, while the sum is 62.

The spelling of 101749408603919 in words is "one hundred one trillion, seven hundred forty-nine billion, four hundred eight million, six hundred three thousand, nine hundred nineteen".