87401333540 has 48 divisors (see below), whose sum is σ = 191747267712. Its totient is φ = 33401339136.

The previous prime is 87401333533. The next prime is 87401333549. The reversal of 87401333540 is 4533310478.

It is a junction number, because it is equal to n+sod(n) for n = 87401333494 and 87401333503.

It is not an unprimeable number, because it can be changed into a prime (87401333549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283367 + ... + 505073.

It is an arithmetic number, because the mean of its divisors is an integer number (3994734744).

Almost surely, 2^87401333540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87401333540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95873633856).

87401333540 is an abundant number, since it is smaller than the sum of its proper divisors (104345934172).

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

87401333540 is a wasteful number, since it uses less digits than its factorization.

87401333540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222596 (or 222594 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The spelling of 87401333540 in words is "eighty-seven billion, four hundred one million, three hundred thirty-three thousand, five hundred forty".