7948788890 has 64 divisors (see below), whose sum is σ = 17227779840. Its totient is φ = 2579558400.

The previous prime is 7948788877. The next prime is 7948788907. The reversal of 7948788890 is 988878497.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7948788890.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2127464 + ... + 2131196.

It is an arithmetic number, because the mean of its divisors is an integer number (269184060).

Almost surely, 2^7948788890 is an apocalyptic number.

7948788890 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

7948788890 is an abundant number, since it is smaller than the sum of its proper divisors (9278990950).

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

7948788890 is a wasteful number, since it uses less digits than its factorization.

7948788890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5367.

The product of its (nonzero) digits is 65028096, while the sum is 68.

The square root of 7948788890 is about 89155.9806743216. The cubic root of 7948788890 is about 1995.7232688037.

The spelling of 7948788890 in words is "seven billion, nine hundred forty-eight million, seven hundred eighty-eight thousand, eight hundred ninety".