7742936987 has 2 divisors, whose sum is σ = 7742936988. Its totient is φ = 7742936986.

The previous prime is 7742936963. The next prime is 7742937017. The reversal of 7742936987 is 7896392477.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7742936987 - 2²⁰ = 7741888411 is a prime.

It is not a weakly prime, because it can be changed into another prime (7742936947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3871468493 + 3871468494.

It is an arithmetic number, because the mean of its divisors is an integer number (3871468494).

Almost surely, 2^7742936987 is an apocalyptic number.

7742936987 is a deficient number, since it is larger than the sum of its proper divisors (1).

7742936987 is an equidigital number, since it uses as much as digits as its factorization.

7742936987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32006016, while the sum is 62.

The square root of 7742936987 is about 87993.9599461236. The cubic root of 7742936987 is about 1978.3444470680.

The spelling of 7742936987 in words is "seven billion, seven hundred forty-two million, nine hundred thirty-six thousand, nine hundred eighty-seven".