54690073897 has 2 divisors, whose sum is σ = 54690073898. Its totient is φ = 54690073896.

The previous prime is 54690073817. The next prime is 54690073909. The reversal of 54690073897 is 79837009645.

54690073897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50956741696 + 3733332201 = 225736^2 + 61101^2 .

It is a cyclic number.

It is not a de Polignac number, because 54690073897 - 2¹⁹ = 54689549609 is a prime.

It is not a weakly prime, because it can be changed into another prime (54690073817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27345036948 + 27345036949.

It is an arithmetic number, because the mean of its divisors is an integer number (27345036949).

Almost surely, 2^54690073897 is an apocalyptic number.

It is an amenable number.

54690073897 is a deficient number, since it is larger than the sum of its proper divisors (1).

54690073897 is an equidigital number, since it uses as much as digits as its factorization.

54690073897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11430720, while the sum is 58.

The spelling of 54690073897 in words is "fifty-four billion, six hundred ninety million, seventy-three thousand, eight hundred ninety-seven".