73401420465 has 24 divisors (see below), whose sum is σ = 127484136000. Its totient is φ = 39068960544.

The previous prime is 73401420451. The next prime is 73401420479. The reversal of 73401420465 is 56402410437.

It is an interprime number because it is at equal distance from previous prime (73401420451) and next prime (73401420479).

It is not a de Polignac number, because 73401420465 - 2²¹ = 73399323313 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1611957 + ... + 1656866.

It is an arithmetic number, because the mean of its divisors is an integer number (5311839000).

Almost surely, 2^73401420465 is an apocalyptic number.

It is an amenable number.

73401420465 is a deficient number, since it is larger than the sum of its proper divisors (54082715535).

73401420465 is a wasteful number, since it uses less digits than its factorization.

73401420465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3269333 (or 3269330 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The spelling of 73401420465 in words is "seventy-three billion, four hundred one million, four hundred twenty thousand, four hundred sixty-five".