1010992427478 has 144 divisors (see below), whose sum is σ = 2535513489600. Its totient is φ = 290114589600.

The previous prime is 1010992427461. The next prime is 1010992427491. The reversal of 1010992427478 is 8747242990101.

It is a super-3 number, since 3×1010992427478³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 152737653 + ... + 152744271.

Almost surely, 2^{1010992427478} is an apocalyptic number.

1010992427478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1010992427478, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1267756744800).

1010992427478 is an abundant number, since it is smaller than the sum of its proper divisors (1524521062122).

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

1010992427478 is a wasteful number, since it uses less digits than its factorization.

1010992427478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10359 (or 10345 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 54.

The spelling of 1010992427478 in words is "one trillion, ten billion, nine hundred ninety-two million, four hundred twenty-seven thousand, four hundred seventy-eight".