7772140998 has 40 divisors (see below), whose sum is σ = 18015893280. Its totient is φ = 2501377200.

The previous prime is 7772140927. The next prime is 7772141009. The reversal of 7772140998 is 8990412777.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 822478 + ... + 831873.

It is an arithmetic number, because the mean of its divisors is an integer number (450397332).

Almost surely, 2^7772140998 is an apocalyptic number.

7772140998 is an abundant number, since it is smaller than the sum of its proper divisors (10243752282).

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

7772140998 is a wasteful number, since it uses less digits than its factorization.

7772140998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1654394 (or 1654385 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 54.

The square root of 7772140998 is about 88159.7470391108. The cubic root of 7772140998 is about 1980.8285650701.

The spelling of 7772140998 in words is "seven billion, seven hundred seventy-two million, one hundred forty thousand, nine hundred ninety-eight".