7740061807 has 4 divisors (see below), whose sum is σ = 8006960520. Its totient is φ = 7473163096.

The previous prime is 7740061757. The next prime is 7740061811. The reversal of 7740061807 is 7081600477.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7740061807 - 2¹¹ = 7740059759 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7740061807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7740061897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133449313 + ... + 133449370.

It is an arithmetic number, because the mean of its divisors is an integer number (2001740130).

Almost surely, 2^7740061807 is an apocalyptic number.

7740061807 is a deficient number, since it is larger than the sum of its proper divisors (266898713).

7740061807 is a wasteful number, since it uses less digits than its factorization.

7740061807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266898712.

The product of its (nonzero) digits is 65856, while the sum is 40.

The square root of 7740061807 is about 87977.6210578577. The cubic root of 7740061807 is about 1978.0995442792.

The spelling of 7740061807 in words is "seven billion, seven hundred forty million, sixty-one thousand, eight hundred seven".