425579279040 has 224 divisors, whose sum is σ = 1549780715520. Its totient is φ = 109826841600.

The previous prime is 425579279039. The next prime is 425579279159. The reversal of 425579279040 is 40972975524.

425579279040 is a `hidden beast` number, since 4 + 2 + 5 + 579 + 27 + 9 + 0 + 40 = 666.

It is a super-2 number, since 2×425579279040² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 526626 + ... + 1062305.

Almost surely, 2^425579279040 is an apocalyptic number.

425579279040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

425579279040 is an abundant number, since it is smaller than the sum of its proper divisors (1124201436480).

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

425579279040 is a wasteful number, since it uses less digits than its factorization.

425579279040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588988 (or 1588972 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 54.

The spelling of 425579279040 in words is "four hundred twenty-five billion, five hundred seventy-nine million, two hundred seventy-nine thousand, forty".