7640400367 has 2 divisors, whose sum is σ = 7640400368. Its totient is φ = 7640400366.

The previous prime is 7640400343. The next prime is 7640400401. The reversal of 7640400367 is 7630040467.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7640400367 - 2⁷ = 7640400239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7640400767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3820200183 + 3820200184.

It is an arithmetic number, because the mean of its divisors is an integer number (3820200184).

Almost surely, 2^7640400367 is an apocalyptic number.

7640400367 is a deficient number, since it is larger than the sum of its proper divisors (1).

7640400367 is an equidigital number, since it uses as much as digits as its factorization.

7640400367 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 7640400367 is about 87409.3837468266. The cubic root of 7640400367 is about 1969.5728042916.

The spelling of 7640400367 in words is "seven billion, six hundred forty million, four hundred thousand, three hundred sixty-seven".