78298995457232 has 80 divisors (see below), whose sum is σ = 165728854317312. Its totient is φ = 35540311388160.

The previous prime is 78298995457231. The next prime is 78298995457259. The reversal of 78298995457232 is 23275459989287.

It is a happy number.

It is a super-2 number, since 2×78298995457232² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78298995457231) 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, 644444393 + ... + 644565879.

Almost surely, 2^{78298995457232} is an apocalyptic number.

It is an amenable number.

78298995457232 is an abundant number, since it is smaller than the sum of its proper divisors (87429858860080).

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

78298995457232 is a wasteful number, since it uses less digits than its factorization.

78298995457232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126636 (or 126630 counting only the distinct ones).

The product of its digits is 5486745600, while the sum is 80.

The spelling of 78298995457232 in words is "seventy-eight trillion, two hundred ninety-eight billion, nine hundred ninety-five million, four hundred fifty-seven thousand, two hundred thirty-two".