72210678870 has 192 divisors, whose sum is σ = 195716279808. Its totient is φ = 17028211200.

The previous prime is 72210678811. The next prime is 72210678871. The reversal of 72210678870 is 7887601227.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72210678871) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 81409567 + ... + 81410453.

It is an arithmetic number, because the mean of its divisors is an integer number (1019355624).

Almost surely, 2^72210678870 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72210678870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97858139904).

72210678870 is an abundant number, since it is smaller than the sum of its proper divisors (123505600938).

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

72210678870 is a wasteful number, since it uses less digits than its factorization.

72210678870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1507 (or 1496 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 72210678870 in words is "seventy-two billion, two hundred ten million, six hundred seventy-eight thousand, eight hundred seventy".