54862557387709 has 2 divisors, whose sum is σ = 54862557387710. Its totient is φ = 54862557387708.

The previous prime is 54862557387653. The next prime is 54862557387721. The reversal of 54862557387709 is 90778375526845.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43717843130809 + 11144714256900 = 6611947^2 + 3338370^2 .

It is a cyclic number.

It is not a de Polignac number, because 54862557387709 - 2³⁵ = 54828197649341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54862557387739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27431278693854 + 27431278693855.

It is an arithmetic number, because the mean of its divisors is an integer number (27431278693855).

Almost surely, 2^{54862557387709} is an apocalyptic number.

It is an amenable number.

54862557387709 is a deficient number, since it is larger than the sum of its proper divisors (1).

54862557387709 is an equidigital number, since it uses as much as digits as its factorization.

54862557387709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3556224000, while the sum is 76.

The spelling of 54862557387709 in words is "fifty-four trillion, eight hundred sixty-two billion, five hundred fifty-seven million, three hundred eighty-seven thousand, seven hundred nine".