6951998552438 has 4 divisors (see below), whose sum is σ = 10427997828660. Its totient is φ = 3475999276218.

The previous prime is 6951998552437. The next prime is 6951998552501. The reversal of 6951998552438 is 8342558991596.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6951998552437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1737999638108 + ... + 1737999638111.

It is an arithmetic number, because the mean of its divisors is an integer number (2606999457165).

Almost surely, 2^{6951998552438} is an apocalyptic number.

6951998552438 is a deficient number, since it is larger than the sum of its proper divisors (3475999276222).

6951998552438 is a wasteful number, since it uses less digits than its factorization.

6951998552438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3475999276221.

The product of its digits is 839808000, while the sum is 74.

The spelling of 6951998552438 in words is "six trillion, nine hundred fifty-one billion, nine hundred ninety-eight million, five hundred fifty-two thousand, four hundred thirty-eight".