6542760772378 has 8 divisors (see below), whose sum is σ = 9814715909172. Its totient is φ = 3271188802656.

The previous prime is 6542760772369. The next prime is 6542760772411. The reversal of 6542760772378 is 8732770672456.

It can be written as a sum of positive squares in 2 ways, for example, as 6300516666889 + 242244105489 = 2510083^2 + 492183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95749075 + ... + 95817382.

Almost surely, 2^{6542760772378} is an apocalyptic number.

6542760772378 is a deficient number, since it is larger than the sum of its proper divisors (3271955136794).

6542760772378 is a wasteful number, since it uses less digits than its factorization.

6542760772378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191583536.

The product of its (nonzero) digits is 165957120, while the sum is 64.

The spelling of 6542760772378 in words is "six trillion, five hundred forty-two billion, seven hundred sixty million, seven hundred seventy-two thousand, three hundred seventy-eight".