10654471990 has 16 divisors (see below), whose sum is σ = 19464290352. Its totient is φ = 4198179744.

The previous prime is 10654471987. The next prime is 10654471991. The reversal of 10654471990 is 9917445601.

It is a super-2 number, since 2×10654471990² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10654471990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10654471991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7950429 + ... + 7951768.

It is an arithmetic number, because the mean of its divisors is an integer number (1216518147).

Almost surely, 2^10654471990 is an apocalyptic number.

10654471990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10654471990 is a deficient number, since it is larger than the sum of its proper divisors (8809818362).

10654471990 is a wasteful number, since it uses less digits than its factorization.

10654471990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15902271.

The product of its (nonzero) digits is 272160, while the sum is 46.

The spelling of 10654471990 in words is "ten billion, six hundred fifty-four million, four hundred seventy-one thousand, nine hundred ninety".