1949987540926 has 16 divisors (see below), whose sum is σ = 2962450814400. Its totient is φ = 962507639808.

The previous prime is 1949987540911. The next prime is 1949987540951. The reversal of 1949987540926 is 6290457899491.

It is a congruent number.

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, 134326 + ... + 1979398.

It is an arithmetic number, because the mean of its divisors is an integer number (185153175900).

Almost surely, 2^{1949987540926} is an apocalyptic number.

1949987540926 is a deficient number, since it is larger than the sum of its proper divisors (1012463273474).

1949987540926 is a wasteful number, since it uses less digits than its factorization.

1949987540926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851843.

The product of its (nonzero) digits is 352719360, while the sum is 73.

The spelling of 1949987540926 in words is "one trillion, nine hundred forty-nine billion, nine hundred eighty-seven million, five hundred forty thousand, nine hundred twenty-six".