1054515977856 has 640 divisors, whose sum is σ = 3539478254400. Its totient is φ = 308883456000.

The previous prime is 1054515977839. The next prime is 1054515977929. The reversal of 1054515977856 is 6587795154501.

It is a happy number.

1054515977856 is a `hidden beast` number, since 1 + 0 + 545 + 1 + 5 + 9 + 7 + 7 + 85 + 6 = 666.

It is a super-2 number, since 2×1054515977856² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1054515977793 and 1054515977802.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 495309400 + ... + 495311528.

Almost surely, 2^{1054515977856} is an apocalyptic number.

1054515977856 is a gapful number since it is divisible by the number (16) 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 1054515977856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1769739127200).

1054515977856 is an abundant number, since it is smaller than the sum of its proper divisors (2484962276544).

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

1054515977856 is a wasteful number, since it uses less digits than its factorization.

1054515977856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2310 (or 2289 counting only the distinct ones).

The product of its (nonzero) digits is 52920000, while the sum is 63.

The spelling of 1054515977856 in words is "one trillion, fifty-four billion, five hundred fifteen million, nine hundred seventy-seven thousand, eight hundred fifty-six".