10978720540 has 24 divisors (see below), whose sum is σ = 23124980592. Its totient is φ = 4378218240.

The previous prime is 10978720523. The next prime is 10978720583. The reversal of 10978720540 is 4502787901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822589 + ... + 835828.

It is an arithmetic number, because the mean of its divisors is an integer number (963540858).

Almost surely, 2^10978720540 is an apocalyptic number.

10978720540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10978720540 is an abundant number, since it is smaller than the sum of its proper divisors (12146260052).

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

10978720540 is a wasteful number, since it uses less digits than its factorization.

10978720540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658757 (or 1658755 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The spelling of 10978720540 in words is "ten billion, nine hundred seventy-eight million, seven hundred twenty thousand, five hundred forty".