91914803650829 has 2 divisors, whose sum is σ = 91914803650830. Its totient is φ = 91914803650828.

The previous prime is 91914803650781. The next prime is 91914803650843. The reversal of 91914803650829 is 92805630841919.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47799662512900 + 44115141137929 = 6913730^2 + 6641923^2 .

It is a cyclic number.

It is not a de Polignac number, because 91914803650829 - 2¹² = 91914803646733 is a prime.

It is a super-2 number, since 2×91914803650829² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91914803650889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45957401825414 + 45957401825415.

It is an arithmetic number, because the mean of its divisors is an integer number (45957401825415).

Almost surely, 2^{91914803650829} is an apocalyptic number.

It is an amenable number.

91914803650829 is a deficient number, since it is larger than the sum of its proper divisors (1).

91914803650829 is an equidigital number, since it uses as much as digits as its factorization.

91914803650829 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33592320, while the sum is 65.

The spelling of 91914803650829 in words is "ninety-one trillion, nine hundred fourteen billion, eight hundred three million, six hundred fifty thousand, eight hundred twenty-nine".