1242948542990 has 64 divisors (see below), whose sum is σ = 2879349977088. Its totient is φ = 374915347200.

The previous prime is 1242948542929. The next prime is 1242948543037. The reversal of 1242948542990 is 992458492421.

It is a congruent number.

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, 26011919 + ... + 26059658.

It is an arithmetic number, because the mean of its divisors is an integer number (44989843392).

Almost surely, 2^{1242948542990} is an apocalyptic number.

1242948542990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1242948542990 is an abundant number, since it is smaller than the sum of its proper divisors (1636401434098).

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

1242948542990 is a wasteful number, since it uses less digits than its factorization.

1242948542990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52071633.

The product of its (nonzero) digits is 14929920, while the sum is 59.

The spelling of 1242948542990 in words is "one trillion, two hundred forty-two billion, nine hundred forty-eight million, five hundred forty-two thousand, nine hundred ninety".