53694691900387 has 2 divisors, whose sum is σ = 53694691900388. Its totient is φ = 53694691900386.

The previous prime is 53694691900351. The next prime is 53694691900417. The reversal of 53694691900387 is 78300919649635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53694691900387 - 2¹¹ = 53694691898339 is a prime.

It is not a weakly prime, because it can be changed into another prime (53694691900307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26847345950193 + 26847345950194.

It is an arithmetic number, because the mean of its divisors is an integer number (26847345950194).

Almost surely, 2^{53694691900387} is an apocalyptic number.

53694691900387 is a deficient number, since it is larger than the sum of its proper divisors (1).

53694691900387 is an equidigital number, since it uses as much as digits as its factorization.

53694691900387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 264539520, while the sum is 70.

The spelling of 53694691900387 in words is "fifty-three trillion, six hundred ninety-four billion, six hundred ninety-one million, nine hundred thousand, three hundred eighty-seven".