1954894059122 has 4 divisors (see below), whose sum is σ = 2932341088686. Its totient is φ = 977447029560.

The previous prime is 1954894059121. The next prime is 1954894059137. The reversal of 1954894059122 is 2219504984591.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1519744062841 + 435149996281 = 1232779^2 + 659659^2 .

It is a super-2 number, since 2×1954894059122² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1954894059121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 488723514779 + ... + 488723514782.

Almost surely, 2^{1954894059122} is an apocalyptic number.

1954894059122 is a deficient number, since it is larger than the sum of its proper divisors (977447029564).

1954894059122 is an equidigital number, since it uses as much as digits as its factorization.

1954894059122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977447029563.

The product of its (nonzero) digits is 9331200, while the sum is 59.

The spelling of 1954894059122 in words is "one trillion, nine hundred fifty-four billion, eight hundred ninety-four million, fifty-nine thousand, one hundred twenty-two".