102393949477 has 16 divisors (see below), whose sum is σ = 105979180032. Its totient is φ = 98869942080.

The previous prime is 102393949439. The next prime is 102393949507. The reversal of 102393949477 is 774949393201.

It is a cyclic number.

It is not a de Polignac number, because 102393949477 - 2¹¹ = 102393947429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102393946477) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291452 + ... + 1368442.

It is an arithmetic number, because the mean of its divisors is an integer number (6623698752).

Almost surely, 2^102393949477 is an apocalyptic number.

It is an amenable number.

102393949477 is a deficient number, since it is larger than the sum of its proper divisors (3585230555).

102393949477 is a wasteful number, since it uses less digits than its factorization.

102393949477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77388.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 102393949477 in words is "one hundred two billion, three hundred ninety-three million, nine hundred forty-nine thousand, four hundred seventy-seven".