91401349270 has 64 divisors (see below), whose sum is σ = 215914636800. Its totient is φ = 26989320960.

The previous prime is 91401349267. The next prime is 91401349283. The reversal of 91401349270 is 7294310419.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3109135 + ... + 3138394.

It is an arithmetic number, because the mean of its divisors is an integer number (3373666200).

Almost surely, 2^91401349270 is an apocalyptic number.

91401349270 is an abundant number, since it is smaller than the sum of its proper divisors (124513287530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91401349270 is a wasteful number, since it uses less digits than its factorization.

91401349270 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247573.

The product of its (nonzero) digits is 54432, while the sum is 40.

Adding to 91401349270 its reverse (7294310419), we get a palindrome (98695659689).

The spelling of 91401349270 in words is "ninety-one billion, four hundred one million, three hundred forty-nine thousand, two hundred seventy".