1023154405425 has 72 divisors (see below), whose sum is σ = 1860667365024. Its totient is φ = 537326254080.

The previous prime is 1023154405411. The next prime is 1023154405433. The reversal of 1023154405425 is 5245044513201.

1023154405425 is a `hidden beast` number, since 1 + 0 + 23 + 1 + 54 + 40 + 542 + 5 = 666.

It is not a de Polignac number, because 1023154405425 - 2¹⁰ = 1023154404401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1023154405425.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 42846289 + ... + 42870161.

It is an arithmetic number, because the mean of its divisors is an integer number (25842602292).

Almost surely, 2^{1023154405425} is an apocalyptic number.

1023154405425 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1023154405425 is a deficient number, since it is larger than the sum of its proper divisors (837512959599).

1023154405425 is a wasteful number, since it uses less digits than its factorization.

1023154405425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26799 (or 26791 counting only the distinct ones).

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

Adding to 1023154405425 its reverse (5245044513201), we get a palindrome (6268198918626).

The spelling of 1023154405425 in words is "one trillion, twenty-three billion, one hundred fifty-four million, four hundred five thousand, four hundred twenty-five".