1019400999024 has 80 divisors (see below), whose sum is σ = 2715850633760. Its totient is φ = 329244549120.

The previous prime is 1019400999013. The next prime is 1019400999077. The reversal of 1019400999024 is 4209990049101.

It is a happy number.

It is a super-2 number, since 2×1019400999024² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 762829 + ... + 1618860.

It is an arithmetic number, because the mean of its divisors is an integer number (33948132922).

Almost surely, 2^{1019400999024} is an apocalyptic number.

It is an amenable number.

1019400999024 is an abundant number, since it is smaller than the sum of its proper divisors (1696449634736).

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

1019400999024 is a wasteful number, since it uses less digits than its factorization.

1019400999024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2381978 (or 2381972 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 48.

The spelling of 1019400999024 in words is "one trillion, nineteen billion, four hundred million, nine hundred ninety-nine thousand, twenty-four".