72407062537061 has 4 divisors (see below), whose sum is σ = 82750928613792. Its totient is φ = 62063196460332.

The previous prime is 72407062537037. The next prime is 72407062537079. The reversal of 72407062537061 is 16073526070427.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 72407062537061 - 2³⁸ = 72132184630117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72407062537021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5171933038355 + ... + 5171933038368.

It is an arithmetic number, because the mean of its divisors is an integer number (20687732153448).

Almost surely, 2^{72407062537061} is an apocalyptic number.

It is an amenable number.

72407062537061 is a deficient number, since it is larger than the sum of its proper divisors (10343866076731).

72407062537061 is a wasteful number, since it uses less digits than its factorization.

72407062537061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10343866076730.

The product of its (nonzero) digits is 2963520, while the sum is 50.

The spelling of 72407062537061 in words is "seventy-two trillion, four hundred seven billion, sixty-two million, five hundred thirty-seven thousand, sixty-one".