73678495436 has 72 divisors (see below), whose sum is σ = 161804388816. Its totient is φ = 29097290880.

The previous prime is 73678495433. The next prime is 73678495441. The reversal of 73678495436 is 63459487637.

It is not an unprimeable number, because it can be changed into a prime (73678495433) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1471046 + ... + 1520306.

It is an arithmetic number, because the mean of its divisors is an integer number (2247283178).

Almost surely, 2^73678495436 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 73678495436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80902194408).

73678495436 is an abundant number, since it is smaller than the sum of its proper divisors (88125893380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

73678495436 is a wasteful number, since it uses less digits than its factorization.

73678495436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49879 (or 49870 counting only the distinct ones).

The product of its digits is 91445760, while the sum is 62.

The spelling of 73678495436 in words is "seventy-three billion, six hundred seventy-eight million, four hundred ninety-five thousand, four hundred thirty-six".