78222728130 has 32 divisors (see below), whose sum is σ = 188624299968. Its totient is φ = 20760532800.

The previous prime is 78222728123. The next prime is 78222728131. The reversal of 78222728130 is 3182722287.

It is a super-2 number, since 2×78222728130² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78222728131) 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, 6172401 + ... + 6185060.

It is an arithmetic number, because the mean of its divisors is an integer number (5894509374).

Almost surely, 2^78222728130 is an apocalyptic number.

78222728130 is an abundant number, since it is smaller than the sum of its proper divisors (110401571838).

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

78222728130 is a wasteful number, since it uses less digits than its factorization.

78222728130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12357682.

The product of its (nonzero) digits is 150528, while the sum is 42.

The spelling of 78222728130 in words is "seventy-eight billion, two hundred twenty-two million, seven hundred twenty-eight thousand, one hundred thirty".