424196681520 has 80 divisors (see below), whose sum is σ = 1357429404672. Its totient is φ = 109470109440.

The previous prime is 424196681479. The next prime is 424196681537. The reversal of 424196681520 is 25186691424.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×424196681520² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 424196681520.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28500402 + ... + 28515281.

Almost surely, 2^424196681520 is an apocalyptic number.

424196681520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

424196681520 is an abundant number, since it is smaller than the sum of its proper divisors (933232723152).

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

424196681520 is a wasteful number, since it uses less digits than its factorization.

424196681520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57015730 (or 57015724 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The spelling of 424196681520 in words is "four hundred twenty-four billion, one hundred ninety-six million, six hundred eighty-one thousand, five hundred twenty".