73698120641 has 4 divisors (see below), whose sum is σ = 73755563952. Its totient is φ = 73640677332.

The previous prime is 73698120611. The next prime is 73698120659. The reversal of 73698120641 is 14602189637.

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: 14602189637 = 7 ⋅2086027091.

It is a cyclic number.

It is not a de Polignac number, because 73698120641 - 2⁶ = 73698120577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (73698120611) 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, 28719731 + ... + 28722296.

It is an arithmetic number, because the mean of its divisors is an integer number (18438890988).

Almost surely, 2^73698120641 is an apocalyptic number.

It is an amenable number.

73698120641 is a deficient number, since it is larger than the sum of its proper divisors (57443311).

73698120641 is a wasteful number, since it uses less digits than its factorization.

73698120641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57443310.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 73698120641 in words is "seventy-three billion, six hundred ninety-eight million, one hundred twenty thousand, six hundred forty-one".