69428293920 has 144 divisors (see below), whose sum is σ = 239138827200. Its totient is φ = 18341140992.

The previous prime is 69428293903. The next prime is 69428293939. The reversal of 69428293920 is 2939282496.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 71220 + ... + 379379.

It is an arithmetic number, because the mean of its divisors is an integer number (1660686300).

Almost surely, 2^69428293920 is an apocalyptic number.

69428293920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 69428293920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119569413600).

69428293920 is an abundant number, since it is smaller than the sum of its proper divisors (169710533280).

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

69428293920 is a wasteful number, since it uses less digits than its factorization.

69428293920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450727 (or 450716 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 54.

The spelling of 69428293920 in words is "sixty-nine billion, four hundred twenty-eight million, two hundred ninety-three thousand, nine hundred twenty".