1916767902540 has 24 divisors (see below), whose sum is σ = 5366950127280. Its totient is φ = 511138107328.

The previous prime is 1916767902523. The next prime is 1916767902557. The reversal of 1916767902540 is 452097676191.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1916767902523) and next prime (1916767902557).

It is a super-6 number, since 6×1916767902540⁶ (a number of 75 digits) contains 666666 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15973065795 + ... + 15973065914.

It is an arithmetic number, because the mean of its divisors is an integer number (223622921970).

Almost surely, 2^{1916767902540} is an apocalyptic number.

1916767902540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916767902540 is an abundant number, since it is smaller than the sum of its proper divisors (3450182224740).

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

1916767902540 is a wasteful number, since it uses less digits than its factorization.

1916767902540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31946131721 (or 31946131719 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 1916767902540 in words is "one trillion, nine hundred sixteen billion, seven hundred sixty-seven million, nine hundred two thousand, five hundred forty".