73740007373 has 8 divisors (see below), whose sum is σ = 74287949688. Its totient is φ = 73192205824.

The previous prime is 73740007343. The next prime is 73740007387. The reversal of 73740007373 is 37370004737.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 48822437764 + 24917569609 = 220958^2 + 157853^2 .

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 73740007373 - 2¹⁰ = 73740006349 is a prime.

It is a super-2 number, since 2×73740007373² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73740007373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73740007343) 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, 1168415 + ... + 1229907.

It is an arithmetic number, because the mean of its divisors is an integer number (9285993711).

Almost surely, 2^73740007373 is an apocalyptic number.

It is an amenable number.

73740007373 is a deficient number, since it is larger than the sum of its proper divisors (547942315).

73740007373 is a wasteful number, since it uses less digits than its factorization.

73740007373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70383.

The product of its (nonzero) digits is 259308, while the sum is 41.

The spelling of 73740007373 in words is "seventy-three billion, seven hundred forty million, seven thousand, three hundred seventy-three".