73061374156405 has 4 divisors (see below), whose sum is σ = 87673648987692. Its totient is φ = 58449099325120.

The previous prime is 73061374156343. The next prime is 73061374156411. The reversal of 73061374156405 is 50465147316037.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20889890738116 + 52171483418289 = 4570546^2 + 7222983^2 .

It is not a de Polignac number, because 73061374156405 - 2²⁹ = 73060837285493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7306137415636 + ... + 7306137415645.

It is an arithmetic number, because the mean of its divisors is an integer number (21918412246923).

Almost surely, 2^{73061374156405} is an apocalyptic number.

It is an amenable number.

73061374156405 is a deficient number, since it is larger than the sum of its proper divisors (14612274831287).

73061374156405 is a wasteful number, since it uses less digits than its factorization.

73061374156405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14612274831286.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 73061374156405 in words is "seventy-three trillion, sixty-one billion, three hundred seventy-four million, one hundred fifty-six thousand, four hundred five".