54690073787 has 2 divisors, whose sum is σ = 54690073788.
Its totient is φ = 54690073786.
The previous prime is 54690073747. The next prime is 54690073817. The reversal of 54690073787 is 78737009645.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 54690073787 - 26 = 54690073723 is a prime.
It is not a weakly prime, because it can be changed into another prime (54690073747) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27345036893 + 27345036894.
It is an arithmetic number, because the mean of its divisors is an integer number (27345036894).
Almost surely, 254690073787 is an apocalyptic number.
54690073787 is a deficient number, since it is larger than the sum of its proper divisors (1).
54690073787 is an equidigital number, since it uses as much as digits as its factorization.
54690073787 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 8890560, while the sum is 56.
The spelling of 54690073787 in words is "fifty-four billion, six hundred ninety million, seventy-three thousand, seven hundred eighty-seven".