919548972340 has 24 divisors (see below), whose sum is σ = 2044644186312. Its totient is φ = 346183142400.

The previous prime is 919548972319. The next prime is 919548972359. The reversal of 919548972340 is 43279845919.

919548972340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13781820816 + 905767151524 = 117396^2 + 951718^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1352277561 + ... + 1352278240.

It is an arithmetic number, because the mean of its divisors is an integer number (85193507763).

Almost surely, 2^919548972340 is an apocalyptic number.

It is an amenable number.

919548972340 is an abundant number, since it is smaller than the sum of its proper divisors (1125095213972).

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

919548972340 is a wasteful number, since it uses less digits than its factorization.

919548972340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704555827 (or 2704555825 counting only the distinct ones).

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 919548972340 in words is "nine hundred nineteen billion, five hundred forty-eight million, nine hundred seventy-two thousand, three hundred forty".