1042405557040 has 20 divisors (see below), whose sum is σ = 2423592920304. Its totient is φ = 416962222784.

The previous prime is 1042405557013. The next prime is 1042405557079. The reversal of 1042405557040 is 407555042401.

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6515034652 + ... + 6515034811.

Almost surely, 2^{1042405557040} is an apocalyptic number.

1042405557040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1042405557040 is an abundant number, since it is smaller than the sum of its proper divisors (1381187363264).

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

1042405557040 is a wasteful number, since it uses less digits than its factorization.

1042405557040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13030069476 (or 13030069470 counting only the distinct ones).

The product of its (nonzero) digits is 112000, while the sum is 37.

The spelling of 1042405557040 in words is "one trillion, forty-two billion, four hundred five million, five hundred fifty-seven thousand, forty".