1225427881038 has 16 divisors (see below), whose sum is σ = 2451477380736. Its totient is φ = 408372357240.

The previous prime is 1225427881037. The next prime is 1225427881049. The reversal of 1225427881038 is 8301887245221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1225427881031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25875148 + ... + 25922463.

It is an arithmetic number, because the mean of its divisors is an integer number (153217336296).

Almost surely, 2^{1225427881038} is an apocalyptic number.

1225427881038 is an abundant number, since it is smaller than the sum of its proper divisors (1226049499698).

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

1225427881038 is a wasteful number, since it uses less digits than its factorization.

1225427881038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51801559.

The product of its (nonzero) digits is 1720320, while the sum is 51.

The spelling of 1225427881038 in words is "one trillion, two hundred twenty-five billion, four hundred twenty-seven million, eight hundred eighty-one thousand, thirty-eight".