1025243405451 has 12 divisors (see below), whose sum is σ = 1545294408528. Its totient is φ = 653778403344.

The previous prime is 1025243405449. The next prime is 1025243405509. The reversal of 1025243405451 is 1545043425201.

1025243405451 is a `hidden beast` number, since 1 + 0 + 2 + 5 + 243 + 405 + 4 + 5 + 1 = 666.

It is not a de Polignac number, because 1025243405451 - 2¹ = 1025243405449 is a prime.

It is a super-2 number, since 2×1025243405451² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1025243405051) 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, 2476433140 + ... + 2476433553.

It is an arithmetic number, because the mean of its divisors is an integer number (128774534044).

Almost surely, 2^{1025243405451} is an apocalyptic number.

1025243405451 is a deficient number, since it is larger than the sum of its proper divisors (520051003077).

1025243405451 is a wasteful number, since it uses less digits than its factorization.

1025243405451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4952866722 (or 4952866719 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 1025243405451 in words is "one trillion, twenty-five billion, two hundred forty-three million, four hundred five thousand, four hundred fifty-one".