1453778086772 has 72 divisors (see below), whose sum is σ = 2850869261856. Its totient is φ = 648007272000.

The previous prime is 1453778086741. The next prime is 1453778086811. The reversal of 1453778086772 is 2776808773541.

It is a super-2 number, since 2×1453778086772² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1453778086699 and 1453778086708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9698063 + ... + 9846825.

Almost surely, 2^{1453778086772} is an apocalyptic number.

It is an amenable number.

1453778086772 is a deficient number, since it is larger than the sum of its proper divisors (1397091175084).

1453778086772 is a wasteful number, since it uses less digits than its factorization.

1453778086772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149181 (or 149168 counting only the distinct ones).

The product of its (nonzero) digits is 110638080, while the sum is 65.

The spelling of 1453778086772 in words is "one trillion, four hundred fifty-three billion, seven hundred seventy-eight million, eighty-six thousand, seven hundred seventy-two".