9949198054546 has 4 divisors (see below), whose sum is σ = 14923797081822. Its totient is φ = 4974599027272.

The previous prime is 9949198054487. The next prime is 9949198054547. The reversal of 9949198054546 is 6454508919499.

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., 6773813049025 + 3175385005521 = 2602655^2 + 1781961^2 .

It is a super-2 number, since 2×9949198054546² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9949198054547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2487299513635 + ... + 2487299513638.

Almost surely, 2^{9949198054546} is an apocalyptic number.

9949198054546 is a deficient number, since it is larger than the sum of its proper divisors (4974599027276).

9949198054546 is a wasteful number, since it uses less digits than its factorization.

9949198054546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4974599027275.

The product of its (nonzero) digits is 503884800, while the sum is 73.

The spelling of 9949198054546 in words is "nine trillion, nine hundred forty-nine billion, one hundred ninety-eight million, fifty-four thousand, five hundred forty-six".