6999400554 has 16 divisors (see below), whose sum is σ = 14019609792. Its totient is φ = 2329665408.

The previous prime is 6999400543. The next prime is 6999400559. The reversal of 6999400554 is 4550049996.

It is a junction number, because it is equal to n+sod(n) for n = 6999400497 and 6999400506.

It is not an unprimeable number, because it can be changed into a prime (6999400559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 862654 + ... + 870729.

It is an arithmetic number, because the mean of its divisors is an integer number (876225612).

Almost surely, 2^6999400554 is an apocalyptic number.

6999400554 is an abundant number, since it is smaller than the sum of its proper divisors (7020209238).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6999400554 is a wasteful number, since it uses less digits than its factorization.

6999400554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1734061.

The product of its (nonzero) digits is 1749600, while the sum is 51.

The square root of 6999400554 is about 83662.4202016652. The cubic root of 6999400554 is about 1912.8765765019.

The spelling of 6999400554 in words is "six billion, nine hundred ninety-nine million, four hundred thousand, five hundred fifty-four".