3550144089978 has 24 divisors (see below), whose sum is σ = 7706041001568. Its totient is φ = 1181217957192.

The previous prime is 3550144089977. The next prime is 3550144089979. The reversal of 3550144089978 is 8799804410553.

3550144089978 is a `hidden beast` number, since 3 + 5 + 501 + 4 + 40 + 89 + 9 + 7 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (3550144089977) and next prime (3550144089979).

It is not an unprimeable number, because it can be changed into a prime (3550144089977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 180273726 + ... + 180293417.

It is an arithmetic number, because the mean of its divisors is an integer number (321085041732).

Almost surely, 2^{3550144089978} is an apocalyptic number.

3550144089978 is an abundant number, since it is smaller than the sum of its proper divisors (4155896911590).

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

3550144089978 is a wasteful number, since it uses less digits than its factorization.

3550144089978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360567698 (or 360567695 counting only the distinct ones).

The product of its (nonzero) digits is 43545600, while the sum is 63.

The spelling of 3550144089978 in words is "three trillion, five hundred fifty billion, one hundred forty-four million, eighty-nine thousand, nine hundred seventy-eight".