27020157780 has 96 divisors (see below), whose sum is σ = 94324930560. Its totient is φ = 5614577280.

The previous prime is 27020157763. The next prime is 27020157797. The reversal of 27020157780 is 8775102072.

It is an interprime number because it is at equal distance from previous prime (27020157763) and next prime (27020157797).

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, 2919640 + ... + 2928879.

It is an arithmetic number, because the mean of its divisors is an integer number (982551360).

Almost surely, 2^27020157780 is an apocalyptic number.

27020157780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

27020157780 is an abundant number, since it is smaller than the sum of its proper divisors (67304772780).

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

27020157780 is a wasteful number, since it uses less digits than its factorization.

27020157780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5848549 (or 5848547 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 39.

The spelling of 27020157780 in words is "twenty-seven billion, twenty million, one hundred fifty-seven thousand, seven hundred eighty".