19225722346428 has 48 divisors (see below), whose sum is σ = 48313940536736. Its totient is φ = 5915221032960.

The previous prime is 19225722346343. The next prime is 19225722346591. The reversal of 19225722346428 is 82464322752291.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1615201 + ... + 6407832.

Almost surely, 2^{19225722346428} is an apocalyptic number.

It is an amenable number.

19225722346428 is an abundant number, since it is smaller than the sum of its proper divisors (29088218190308).

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

19225722346428 is a wasteful number, since it uses less digits than its factorization.

19225722346428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8038414 (or 8038412 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 57.

The spelling of 19225722346428 in words is "nineteen trillion, two hundred twenty-five billion, seven hundred twenty-two million, three hundred forty-six thousand, four hundred twenty-eight".