91282769425 has 12 divisors (see below), whose sum is σ = 113219919756. Its totient is φ = 73007321600.

The previous prime is 91282769411. The next prime is 91282769437. The reversal of 91282769425 is 52496728219.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 31047184 + 91251722241 = 5572^2 + 302079^2 .

It is not a de Polignac number, because 91282769425 - 2¹⁹ = 91282245137 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 373384 + ... + 567433.

It is an arithmetic number, because the mean of its divisors is an integer number (9434993313).

Almost surely, 2^91282769425 is an apocalyptic number.

It is an amenable number.

91282769425 is a deficient number, since it is larger than the sum of its proper divisors (21937150331).

91282769425 is a wasteful number, since it uses less digits than its factorization.

91282769425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 944708 (or 944703 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 55.

The spelling of 91282769425 in words is "ninety-one billion, two hundred eighty-two million, seven hundred sixty-nine thousand, four hundred twenty-five".