1010135109978 has 48 divisors (see below), whose sum is σ = 2206916712000. Its totient is φ = 333901451520.

The previous prime is 1010135109947. The next prime is 1010135109979. The reversal of 1010135109978 is 8799015310101.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1010135109979) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3145738 + ... + 3451946.

It is an arithmetic number, because the mean of its divisors is an integer number (45977431500).

Almost surely, 2^{1010135109978} is an apocalyptic number.

1010135109978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1010135109978 is an abundant number, since it is smaller than the sum of its proper divisors (1196781602022).

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

1010135109978 is a wasteful number, since it uses less digits than its factorization.

1010135109978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307747 (or 307744 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 45.

The spelling of 1010135109978 in words is "one trillion, ten billion, one hundred thirty-five million, one hundred nine thousand, nine hundred seventy-eight".