6878620501 has 2 divisors, whose sum is σ = 6878620502. Its totient is φ = 6878620500.

The previous prime is 6878620451. The next prime is 6878620537. The reversal of 6878620501 is 1050268786.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5486957476 + 1391663025 = 74074^2 + 37305^2 .

It is a cyclic number.

It is not a de Polignac number, because 6878620501 - 2¹⁹ = 6878096213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6878620571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3439310250 + 3439310251.

It is an arithmetic number, because the mean of its divisors is an integer number (3439310251).

Almost surely, 2^6878620501 is an apocalyptic number.

It is an amenable number.

6878620501 is a deficient number, since it is larger than the sum of its proper divisors (1).

6878620501 is an equidigital number, since it uses as much as digits as its factorization.

6878620501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 6878620501 is about 82937.4493277916. The cubic root of 6878620501 is about 1901.8099558828.

The spelling of 6878620501 in words is "six billion, eight hundred seventy-eight million, six hundred twenty thousand, five hundred one".