71976076620 has 192 divisors, whose sum is σ = 244200821760. Its totient is φ = 15463047168.

The previous prime is 71976076597. The next prime is 71976076631. The reversal of 71976076620 is 2667067917.

It is a super-2 number, since 2×71976076620² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5612776 + ... + 5625584.

It is an arithmetic number, because the mean of its divisors is an integer number (1271879280).

Almost surely, 2^71976076620 is an apocalyptic number.

71976076620 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 71976076620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122100410880).

71976076620 is an abundant number, since it is smaller than the sum of its proper divisors (172224745140).

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

71976076620 is a wasteful number, since it uses less digits than its factorization.

71976076620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13632 (or 13630 counting only the distinct ones).

The product of its (nonzero) digits is 1333584, while the sum is 51.

The spelling of 71976076620 in words is "seventy-one billion, nine hundred seventy-six million, seventy-six thousand, six hundred twenty".