7875632749 has 2 divisors, whose sum is σ = 7875632750. Its totient is φ = 7875632748.

The previous prime is 7875632741. The next prime is 7875632761. The reversal of 7875632749 is 9472365787.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5482662025 + 2392970724 = 74045^2 + 48918^2 .

It is a cyclic number.

It is not a de Polignac number, because 7875632749 - 2³ = 7875632741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7875632693 and 7875632702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7875632741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3937816374 + 3937816375.

It is an arithmetic number, because the mean of its divisors is an integer number (3937816375).

Almost surely, 2^7875632749 is an apocalyptic number.

It is an amenable number.

7875632749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7875632749 is an equidigital number, since it uses as much as digits as its factorization.

7875632749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17781120, while the sum is 58.

The square root of 7875632749 is about 88744.7618116134. The cubic root of 7875632749 is about 1989.5818881183.

The spelling of 7875632749 in words is "seven billion, eight hundred seventy-five million, six hundred thirty-two thousand, seven hundred forty-nine".