1954480755920 has 640 divisors, whose sum is σ = 5937603969024. Its totient is φ = 585446400000.

The previous prime is 1954480755911. The next prime is 1954480755943. The reversal of 1954480755920 is 295570844591.

It is a super-2 number, since 2×1954480755920² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1954480755920.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5799645992 + ... + 5799646328.

Almost surely, 2^{1954480755920} is an apocalyptic number.

1954480755920 is a gapful number since it is divisible by the number (10) 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 1954480755920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2968801984512).

1954480755920 is an abundant number, since it is smaller than the sum of its proper divisors (3983123213104).

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

1954480755920 is a wasteful number, since it uses less digits than its factorization.

1954480755920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 18144000, while the sum is 59.

The spelling of 1954480755920 in words is "one trillion, nine hundred fifty-four billion, four hundred eighty million, seven hundred fifty-five thousand, nine hundred twenty".