7640751442 has 16 divisors (see below), whose sum is σ = 11733812640. Its totient is φ = 3729573792.

The previous prime is 7640751427. The next prime is 7640751463. The reversal of 7640751442 is 2441570467.

It is a junction number, because it is equal to n+sod(n) for n = 7640751395 and 7640751404.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149109 + ... + 193687.

It is an arithmetic number, because the mean of its divisors is an integer number (733363290).

Almost surely, 2^7640751442 is an apocalyptic number.

7640751442 is a deficient number, since it is larger than the sum of its proper divisors (4093061198).

7640751442 is a wasteful number, since it uses less digits than its factorization.

7640751442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46617.

The product of its (nonzero) digits is 188160, while the sum is 40.

The square root of 7640751442 is about 87411.3919463590. The cubic root of 7640751442 is about 1969.6029709996.

The spelling of 7640751442 in words is "seven billion, six hundred forty million, seven hundred fifty-one thousand, four hundred forty-two".