1954895245464 has 128 divisors (see below), whose sum is σ = 5709835584000. Its totient is φ = 557519114880.

The previous prime is 1954895245453. The next prime is 1954895245477. The reversal of 1954895245464 is 4645425984591.

It is a junction number, because it is equal to n+sod(n) for n = 1954895245395 and 1954895245404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4285834 + ... + 4719974.

It is an arithmetic number, because the mean of its divisors is an integer number (44608090500).

Almost surely, 2^{1954895245464} is an apocalyptic number.

1954895245464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1954895245464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2854917792000).

1954895245464 is an abundant number, since it is smaller than the sum of its proper divisors (3754940338536).

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

1954895245464 is a wasteful number, since it uses less digits than its factorization.

1954895245464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434718 (or 434700 counting only the distinct ones).

The product of its digits is 248832000, while the sum is 66.

The spelling of 1954895245464 in words is "one trillion, nine hundred fifty-four billion, eight hundred ninety-five million, two hundred forty-five thousand, four hundred sixty-four".