1078554742650 has 960 divisors, whose sum is σ = 3889036800000. Its totient is φ = 215049945600.

The previous prime is 1078554742631. The next prime is 1078554742669. The reversal of 1078554742650 is 562474558701.

It is a happy number.

1078554742650 is a `hidden beast` number, since 1 + 0 + 7 + 8 + 5 + 547 + 42 + 6 + 50 = 666.

It is an interprime number because it is at equal distance from previous prime (1078554742631) and next prime (1078554742669).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 2161432101 + ... + 2161432599.

It is an arithmetic number, because the mean of its divisors is an integer number (4051080000).

Almost surely, 2^{1078554742650} is an apocalyptic number.

1078554742650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1078554742650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1944518400000).

1078554742650 is an abundant number, since it is smaller than the sum of its proper divisors (2810482057350).

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

1078554742650 is a wasteful number, since it uses less digits than its factorization.

1078554742650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 795 counting only the distinct ones).

The product of its (nonzero) digits is 9408000, while the sum is 54.

The spelling of 1078554742650 in words is "one trillion, seventy-eight billion, five hundred fifty-four million, seven hundred forty-two thousand, six hundred fifty".