78928698240 has 1152 divisors, whose sum is σ = 339470157600. Its totient is φ = 17278894080.

The previous prime is 78928698187. The next prime is 78928698287. The reversal of 78928698240 is 4289682987.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 813697872 + ... + 813697968.

Almost surely, 2^78928698240 is an apocalyptic number.

78928698240 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78928698240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169735078800).

78928698240 is an abundant number, since it is smaller than the sum of its proper divisors (260541459360).

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

78928698240 is a wasteful number, since it uses less digits than its factorization.

78928698240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 27869184, while the sum is 63.

The spelling of 78928698240 in words is "seventy-eight billion, nine hundred twenty-eight million, six hundred ninety-eight thousand, two hundred forty".