10201021977 has 8 divisors (see below), whose sum is σ = 13639250880. Its totient is φ = 6781737200.

The previous prime is 10201021973. The next prime is 10201021979. The reversal of 10201021977 is 77912010201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10201021977 - 2² = 10201021973 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10201021973) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4734774 + ... + 4736927.

It is an arithmetic number, because the mean of its divisors is an integer number (1704906360).

Almost surely, 2^10201021977 is an apocalyptic number.

It is an amenable number.

10201021977 is a deficient number, since it is larger than the sum of its proper divisors (3438228903).

10201021977 is an equidigital number, since it uses as much as digits as its factorization.

10201021977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9472063.

The product of its (nonzero) digits is 1764, while the sum is 30.

The spelling of 10201021977 in words is "ten billion, two hundred one million, twenty-one thousand, nine hundred seventy-seven".