73007661000761 has 4 divisors (see below), whose sum is σ = 73165344934272. Its totient is φ = 72849977067252.

The previous prime is 73007661000727. The next prime is 73007661000763. The reversal of 73007661000761 is 16700016670037.

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 73007661000761 - 2³⁰ = 73006587258937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73007661000763) 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, 78841966061 + ... + 78841966986.

It is an arithmetic number, because the mean of its divisors is an integer number (18291336233568).

Almost surely, 2^{73007661000761} is an apocalyptic number.

It is an amenable number.

73007661000761 is a deficient number, since it is larger than the sum of its proper divisors (157683933511).

73007661000761 is a wasteful number, since it uses less digits than its factorization.

73007661000761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157683933510.

The product of its (nonzero) digits is 222264, while the sum is 44.

Adding to 73007661000761 its reverse (16700016670037), we get a palindrome (89707677670798).

The spelling of 73007661000761 in words is "seventy-three trillion, seven billion, six hundred sixty-one million, seven hundred sixty-one", and thus it is an aban number.