73120775441251 has 24 divisors (see below), whose sum is σ = 77379871777920. Its totient is φ = 69085705666176.

The previous prime is 73120775441123. The next prime is 73120775441269. The reversal of 73120775441251 is 15214457702137.

It is not a de Polignac number, because 73120775441251 - 2⁷ = 73120775441123 is a prime.

It is a super-2 number, since 2×73120775441251² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73120775441195 and 73120775441204.

It is not an unprimeable number, because it can be changed into a prime (73120775442251) 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, 286399185 + ... + 286654381.

It is an arithmetic number, because the mean of its divisors is an integer number (3224161324080).

Almost surely, 2^{73120775441251} is an apocalyptic number.

73120775441251 is a deficient number, since it is larger than the sum of its proper divisors (4259096336669).

73120775441251 is a wasteful number, since it uses less digits than its factorization.

73120775441251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257371 (or 257352 counting only the distinct ones).

The product of its (nonzero) digits is 1646400, while the sum is 49.

The spelling of 73120775441251 in words is "seventy-three trillion, one hundred twenty billion, seven hundred seventy-five million, four hundred forty-one thousand, two hundred fifty-one".