20077685542470 has 32 divisors (see below), whose sum is σ = 48241390000608. Its totient is φ = 5347944511488.

The previous prime is 20077685542429. The next prime is 20077685542483. The reversal of 20077685542470 is 7424558677002.

It is a super-2 number, since 2×20077685542470² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20077685542470.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 381533659 + ... + 381586278.

It is an arithmetic number, because the mean of its divisors is an integer number (1507543437519).

Almost surely, 2^{20077685542470} is an apocalyptic number.

20077685542470 is an abundant number, since it is smaller than the sum of its proper divisors (28163704458138).

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

20077685542470 is a wasteful number, since it uses less digits than its factorization.

20077685542470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763120824.

The product of its (nonzero) digits is 26342400, while the sum is 57.

The spelling of 20077685542470 in words is "twenty trillion, seventy-seven billion, six hundred eighty-five million, five hundred forty-two thousand, four hundred seventy".