20678951462 has 16 divisors (see below), whose sum is σ = 33422780832. Its totient is φ = 9538896960.

The previous prime is 20678951443. The next prime is 20678951467. The reversal of 20678951462 is 26415987602.

It is a self number, because there is not a number n which added to its sum of digits gives 20678951462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20678951467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169583 + ... + 264794.

It is an arithmetic number, because the mean of its divisors is an integer number (2088923802).

Almost surely, 2^20678951462 is an apocalyptic number.

20678951462 is a deficient number, since it is larger than the sum of its proper divisors (12743829370).

20678951462 is a wasteful number, since it uses less digits than its factorization.

20678951462 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436223.

The product of its (nonzero) digits is 1451520, while the sum is 50.

The spelling of 20678951462 in words is "twenty billion, six hundred seventy-eight million, nine hundred fifty-one thousand, four hundred sixty-two".