7698961440 has 96 divisors (see below), whose sum is σ = 26946380160. Its totient is φ = 2053055232.

The previous prime is 7698961429. The next prime is 7698961469. The reversal of 7698961440 is 441698967.

7698961440 is a `hidden beast` number, since 7 + 69 + 89 + 61 + 440 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

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, 886764 + ... + 895403.

It is an arithmetic number, because the mean of its divisors is an integer number (280691460).

Almost surely, 2^7698961440 is an apocalyptic number.

It is an amenable number.

7698961440 is an abundant number, since it is smaller than the sum of its proper divisors (19247418720).

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

7698961440 is a wasteful number, since it uses less digits than its factorization.

7698961440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1782191 (or 1782177 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 7698961440 is about 87743.7259295501. The cubic root of 7698961440 is about 1974.5920379385.

The spelling of 7698961440 in words is "seven billion, six hundred ninety-eight million, nine hundred sixty-one thousand, four hundred forty".