20471054029740 has 72 divisors (see below), whose sum is σ = 64795336246368. Its totient is φ = 5221602186240.

The previous prime is 20471054029729. The next prime is 20471054029781. The reversal of 20471054029740 is 4792045017402.

20471054029740 is a `hidden beast` number, since 2 + 0 + 4 + 7 + 10 + 540 + 2 + 97 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2472345381 + ... + 2472353660.

It is an arithmetic number, because the mean of its divisors is an integer number (899935225644).

Almost surely, 2^{20471054029740} is an apocalyptic number.

20471054029740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20471054029740 is an abundant number, since it is smaller than the sum of its proper divisors (44324282216628).

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

20471054029740 is a wasteful number, since it uses less digits than its factorization.

20471054029740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4944699079 (or 4944699074 counting only the distinct ones).

The product of its (nonzero) digits is 564480, while the sum is 45.

The spelling of 20471054029740 in words is "twenty trillion, four hundred seventy-one billion, fifty-four million, twenty-nine thousand, seven hundred forty".