75825103921 has 8 divisors (see below), whose sum is σ = 88999350080. Its totient is φ = 63236379888.

The previous prime is 75825103909. The next prime is 75825103957. The reversal of 75825103921 is 12930152857.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75825103921 - 2⁷ = 75825103793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75825193921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 146380251 + ... + 146380768.

It is an arithmetic number, because the mean of its divisors is an integer number (11124918760).

Almost surely, 2^75825103921 is an apocalyptic number.

It is an amenable number.

75825103921 is a deficient number, since it is larger than the sum of its proper divisors (13174246159).

75825103921 is a wasteful number, since it uses less digits than its factorization.

75825103921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292761063.

The product of its (nonzero) digits is 151200, while the sum is 43.

The spelling of 75825103921 in words is "seventy-five billion, eight hundred twenty-five million, one hundred three thousand, nine hundred twenty-one".