378676544651 has 2 divisors, whose sum is σ = 378676544652. Its totient is φ = 378676544650.

The previous prime is 378676544641. The next prime is 378676544707. The reversal of 378676544651 is 156445676873.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 378676544651 - 2³⁰ = 377602802827 is a prime.

It is not a weakly prime, because it can be changed into another prime (378676544611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 189338272325 + 189338272326.

It is an arithmetic number, because the mean of its divisors is an integer number (189338272326).

Almost surely, 2^378676544651 is an apocalyptic number.

378676544651 is a deficient number, since it is larger than the sum of its proper divisors (1).

378676544651 is an equidigital number, since it uses as much as digits as its factorization.

378676544651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 101606400, while the sum is 62.

The spelling of 378676544651 in words is "three hundred seventy-eight billion, six hundred seventy-six million, five hundred forty-four thousand, six hundred fifty-one".