73400006737 has 4 divisors (see below), whose sum is σ = 74961709056. Its totient is φ = 71838304420.

The previous prime is 73400006707. The next prime is 73400006783. The reversal of 73400006737 is 73760000437.

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, and also an emirpimes, since its reverse is a distinct semiprime: 73760000437 = 80317 ⋅918361.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73400006737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 73400006696 and 73400006705.

It is not an unprimeable number, because it can be changed into a prime (73400006707) 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, 780851089 + ... + 780851182.

It is an arithmetic number, because the mean of its divisors is an integer number (18740427264).

Almost surely, 2^73400006737 is an apocalyptic number.

It is an amenable number.

73400006737 is a deficient number, since it is larger than the sum of its proper divisors (1561702319).

73400006737 is a wasteful number, since it uses less digits than its factorization.

73400006737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561702318.

The product of its (nonzero) digits is 74088, while the sum is 37.

The spelling of 73400006737 in words is "seventy-three billion, four hundred million, six thousand, seven hundred thirty-seven".