7627742457 has 16 divisors (see below), whose sum is σ = 10378082880. Its totient is φ = 4981575872.

The previous prime is 7627742411. The next prime is 7627742513. The reversal of 7627742457 is 7542477267.

It is a cyclic number.

It is not a de Polignac number, because 7627742457 - 2⁷ = 7627742329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7627744457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68383 + ... + 141179.

It is an arithmetic number, because the mean of its divisors is an integer number (648630180).

Almost surely, 2^7627742457 is an apocalyptic number.

It is an amenable number.

7627742457 is a deficient number, since it is larger than the sum of its proper divisors (2750340423).

7627742457 is a wasteful number, since it uses less digits than its factorization.

7627742457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73512.

The product of its digits is 4609920, while the sum is 51.

The square root of 7627742457 is about 87336.9478342357. The cubic root of 7627742457 is about 1968.4845342884.

The spelling of 7627742457 in words is "seven billion, six hundred twenty-seven million, seven hundred forty-two thousand, four hundred fifty-seven".