5521878532940 has 96 divisors (see below), whose sum is σ = 14488644538368. Its totient is φ = 1717371360000.

The previous prime is 5521878532871. The next prime is 5521878532943. The reversal of 5521878532940 is 492358781255.

It is a happy number.

It is a super-2 number, since 2×5521878532940² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5521878532940.

It is not an unprimeable number, because it can be changed into a prime (5521878532943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3179036 + ... + 4598915.

It is an arithmetic number, because the mean of its divisors is an integer number (150923380608).

Almost surely, 2^{5521878532940} is an apocalyptic number.

It is an amenable number.

5521878532940 is an abundant number, since it is smaller than the sum of its proper divisors (8966766005428).

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

5521878532940 is a wasteful number, since it uses less digits than its factorization.

5521878532940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778439 (or 7778437 counting only the distinct ones).

The product of its (nonzero) digits is 24192000, while the sum is 59.

The spelling of 5521878532940 in words is "five trillion, five hundred twenty-one billion, eight hundred seventy-eight million, five hundred thirty-two thousand, nine hundred forty".