75123996838 has 48 divisors (see below), whose sum is σ = 126284553360. Its totient is φ = 33482240000.

The previous prime is 75123996833. The next prime is 75123996839. The reversal of 75123996838 is 83869932157.

It is a super-2 number, since 2×75123996838² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75123996833) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5718918 + ... + 5732038.

It is an arithmetic number, because the mean of its divisors is an integer number (2630928195).

Almost surely, 2^75123996838 is an apocalyptic number.

75123996838 is a deficient number, since it is larger than the sum of its proper divisors (51160556522).

75123996838 is a wasteful number, since it uses less digits than its factorization.

75123996838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13605 (or 13594 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 61.

The spelling of 75123996838 in words is "seventy-five billion, one hundred twenty-three million, nine hundred ninety-six thousand, eight hundred thirty-eight".