1017961646325 has 48 divisors (see below), whose sum is σ = 1813313690496. Its totient is φ = 500923641600.

The previous prime is 1017961646309. The next prime is 1017961646329. The reversal of 1017961646325 is 5236461697101.

1017961646325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1017961646325 - 2⁴ = 1017961646309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1017961646329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1930432 + ... + 2400518.

It is an arithmetic number, because the mean of its divisors is an integer number (37777368552).

Almost surely, 2^{1017961646325} is an apocalyptic number.

1017961646325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1017961646325 is a deficient number, since it is larger than the sum of its proper divisors (795352044171).

1017961646325 is a wasteful number, since it uses less digits than its factorization.

1017961646325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 472334 (or 472329 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 51.

The spelling of 1017961646325 in words is "one trillion, seventeen billion, nine hundred sixty-one million, six hundred forty-six thousand, three hundred twenty-five".