78284097930 has 32 divisors (see below), whose sum is σ = 188017982208. Its totient is φ = 20860632000.

The previous prime is 78284097923. The next prime is 78284097967. The reversal of 78284097930 is 3979048287.

It is a super-2 number, since 2×78284097930² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 903346 + ... + 986205.

It is an arithmetic number, because the mean of its divisors is an integer number (5875561944).

Almost surely, 2^78284097930 is an apocalyptic number.

78284097930 is an abundant number, since it is smaller than the sum of its proper divisors (109733884278).

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

78284097930 is a wasteful number, since it uses less digits than its factorization.

78284097930 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1890942.

The product of its (nonzero) digits is 6096384, while the sum is 57.

The spelling of 78284097930 in words is "seventy-eight billion, two hundred eighty-four million, ninety-seven thousand, nine hundred thirty".