78148539900 has 108 divisors (see below), whose sum is σ = 251572695192. Its totient is φ = 20276369280.

The previous prime is 78148539899. The next prime is 78148539901. The reversal of 78148539900 is 993584187.

78148539900 is a `hidden beast` number, since 7 + 8 + 14 + 8 + 539 + 90 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (78148539899) and next prime (78148539901).

It is a super-2 number, since 2×78148539900² (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 (78148539901) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1140102 + ... + 1206701.

Almost surely, 2^78148539900 is an apocalyptic number.

It is an amenable number.

78148539900 is an abundant number, since it is smaller than the sum of its proper divisors (173424155292).

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

78148539900 is a wasteful number, since it uses less digits than its factorization.

78148539900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346860 (or 2346850 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 78148539900 in words is "seventy-eight billion, one hundred forty-eight million, five hundred thirty-nine thousand, nine hundred".