1961426854 has 16 divisors (see below), whose sum is σ = 3107681280. Its totient is φ = 927004680.

The previous prime is 1961426851. The next prime is 1961426899. The reversal of 1961426854 is 4586241691.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1961426851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 365194 + ... + 370525.

It is an arithmetic number, because the mean of its divisors is an integer number (194230080).

Almost surely, 2^1961426854 is an apocalyptic number.

1961426854 is a deficient number, since it is larger than the sum of its proper divisors (1146254426).

1961426854 is a wasteful number, since it uses less digits than its factorization.

1961426854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735795.

The product of its digits is 414720, while the sum is 46.

The square root of 1961426854 is about 44287.9989839234. The cubic root of 1961426854 is about 1251.7685587665.

The spelling of 1961426854 in words is "one billion, nine hundred sixty-one million, four hundred twenty-six thousand, eight hundred fifty-four".