887406420780880 has 640 divisors, whose sum is σ = 2778427019289600. Its totient is φ = 254559913574400.

The previous prime is 887406420780863. The next prime is 887406420780941. The reversal of 887406420780880 is 88087024604788.

It is a happy number.

It is a super-2 number, since 2×887406420780880² (a number of 31 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (70).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 74315915710 + ... + 74315927650.

It is an arithmetic number, because the mean of its divisors is an integer number (4341292217640).

Almost surely, 2^{887406420780880} is an apocalyptic number.

887406420780880 is a gapful number since it is divisible by the number (80) 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 887406420780880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1389213509644800).

887406420780880 is an abundant number, since it is smaller than the sum of its proper divisors (1891020598508720).

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

887406420780880 is a wasteful number, since it uses less digits than its factorization.

887406420780880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14663 (or 14657 counting only the distinct ones).

The product of its (nonzero) digits is 308281344, while the sum is 70.

The spelling of 887406420780880 in words is "eight hundred eighty-seven trillion, four hundred six billion, four hundred twenty million, seven hundred eighty thousand, eight hundred eighty".