1478080777740 has 96 divisors (see below), whose sum is σ = 4763886435840. Its totient is φ = 335416467456.

The previous prime is 1478080777711. The next prime is 1478080777769. The reversal of 1478080777740 is 477770808741.

It is an interprime number because it is at equal distance from previous prime (1478080777711) and next prime (1478080777769).

It is a Harshad number since it is a multiple of its sum of digits (60).

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, 12600757 + ... + 12717516.

It is an arithmetic number, because the mean of its divisors is an integer number (49623817040).

Almost surely, 2^{1478080777740} is an apocalyptic number.

1478080777740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1478080777740 is an abundant number, since it is smaller than the sum of its proper divisors (3285805658100).

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

1478080777740 is a wasteful number, since it uses less digits than its factorization.

1478080777740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25318431 (or 25318429 counting only the distinct ones).

The product of its (nonzero) digits is 17210368, while the sum is 60.

The spelling of 1478080777740 in words is "one trillion, four hundred seventy-eight billion, eighty million, seven hundred seventy-seven thousand, seven hundred forty".