73435875121 has 12 divisors (see below), whose sum is σ = 89921480880. Its totient is φ = 59632138440.

The previous prime is 73435875101. The next prime is 73435875131. The reversal of 73435875121 is 12157853437.

It is not a de Polignac number, because 73435875121 - 2¹¹ = 73435873073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73435875101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39438315 + ... + 39440176.

It is an arithmetic number, because the mean of its divisors is an integer number (7493456740).

Almost surely, 2^73435875121 is an apocalyptic number.

It is an amenable number.

73435875121 is a deficient number, since it is larger than the sum of its proper divisors (16485605759).

73435875121 is a wasteful number, since it uses less digits than its factorization.

73435875121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78878524 (or 78878517 counting only the distinct ones).

The product of its digits is 705600, while the sum is 46.

The spelling of 73435875121 in words is "seventy-three billion, four hundred thirty-five million, eight hundred seventy-five thousand, one hundred twenty-one".