73434402013 has 16 divisors (see below), whose sum is σ = 90396613120. Its totient is φ = 58244172336.

The previous prime is 73434401981. The next prime is 73434402031. The reversal of 73434402013 is 31020443437.

It is a happy number.

It is not a de Polignac number, because 73434402013 - 2⁵ = 73434401981 is a prime.

It is a super-2 number, since 2×73434402013² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73434402043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6414495 + ... + 6425932.

It is an arithmetic number, because the mean of its divisors is an integer number (5649788320).

Almost surely, 2^73434402013 is an apocalyptic number.

It is an amenable number.

73434402013 is a deficient number, since it is larger than the sum of its proper divisors (16962211107).

73434402013 is a wasteful number, since it uses less digits than its factorization.

73434402013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12840496.

The product of its (nonzero) digits is 24192, while the sum is 31.

The spelling of 73434402013 in words is "seventy-three billion, four hundred thirty-four million, four hundred two thousand, thirteen".