73126165740 has 48 divisors (see below), whose sum is σ = 204799891968. Its totient is φ = 19495870144.

The previous prime is 73126165687. The next prime is 73126165741. The reversal of 73126165740 is 4756162137.

It is a happy number.

It is a super-2 number, since 2×73126165740² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 73126165692 and 73126165701.

It is not an unprimeable number, because it can be changed into a prime (73126165741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131239 + ... + 404321.

It is an arithmetic number, because the mean of its divisors is an integer number (4266664416).

Almost surely, 2^73126165740 is an apocalyptic number.

It is an amenable number.

73126165740 is an abundant number, since it is smaller than the sum of its proper divisors (131673726228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73126165740 is a wasteful number, since it uses less digits than its factorization.

73126165740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277558 (or 277556 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 73126165740 in words is "seventy-three billion, one hundred twenty-six million, one hundred sixty-five thousand, seven hundred forty".