91748747950 has 12 divisors (see below), whose sum is σ = 170652671280. Its totient is φ = 36699499160.

The previous prime is 91748747933. The next prime is 91748747953. The reversal of 91748747950 is 5974784719.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91748747953) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 917487430 + ... + 917487529.

It is an arithmetic number, because the mean of its divisors is an integer number (14221055940).

Almost surely, 2^91748747950 is an apocalyptic number.

91748747950 is a deficient number, since it is larger than the sum of its proper divisors (78903923330).

91748747950 is a wasteful number, since it uses less digits than its factorization.

91748747950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1834974971 (or 1834974966 counting only the distinct ones).

The product of its (nonzero) digits is 17781120, while the sum is 61.

The spelling of 91748747950 in words is "ninety-one billion, seven hundred forty-eight million, seven hundred forty-seven thousand, nine hundred fifty".