1480353991978 has 8 divisors (see below), whose sum is σ = 2220617309472. Its totient is φ = 740148222156.

The previous prime is 1480353991973. The next prime is 1480353992021. The reversal of 1480353991978 is 8791993530841.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1480353991973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14322550 + ... + 14425537.

It is an arithmetic number, because the mean of its divisors is an integer number (277577163684).

Almost surely, 2^{1480353991978} is an apocalyptic number.

1480353991978 is a deficient number, since it is larger than the sum of its proper divisors (740263317494).

1480353991978 is a wasteful number, since it uses less digits than its factorization.

1480353991978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28773836.

The product of its (nonzero) digits is 58786560, while the sum is 67.

The spelling of 1480353991978 in words is "one trillion, four hundred eighty billion, three hundred fifty-three million, nine hundred ninety-one thousand, nine hundred seventy-eight".