71294157480 has 384 divisors, whose sum is σ = 269058136320. Its totient is φ = 14793891840.

The previous prime is 71294157479. The next prime is 71294157491. The reversal of 71294157480 is 8475149217.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8655444 + ... + 8663676.

It is an arithmetic number, because the mean of its divisors is an integer number (700672230).

Almost surely, 2^71294157480 is an apocalyptic number.

71294157480 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 71294157480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (134529068160).

71294157480 is an abundant number, since it is smaller than the sum of its proper divisors (197763978840).

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

71294157480 is a wasteful number, since it uses less digits than its factorization.

71294157480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341 (or 8324 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 71294157480 in words is "seventy-one billion, two hundred ninety-four million, one hundred fifty-seven thousand, four hundred eighty".