4925101078421 has 4 divisors (see below), whose sum is σ = 4925110616652. Its totient is φ = 4925091540192.

The previous prime is 4925101078411. The next prime is 4925101078423. The reversal of 4925101078421 is 1248701015294.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3747689451025 + 1177411627396 = 1935895^2 + 1085086^2 .

It is a cyclic number.

It is not a de Polignac number, because 4925101078421 - 2⁴² = 527054567317 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 (4925101078423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3947390 + ... + 5043023.

It is an arithmetic number, because the mean of its divisors is an integer number (1231277654163).

Almost surely, 2^{4925101078421} is an apocalyptic number.

It is an amenable number.

4925101078421 is a deficient number, since it is larger than the sum of its proper divisors (9538231).

4925101078421 is an equidigital number, since it uses as much as digits as its factorization.

4925101078421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9538230.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 4925101078421 in words is "four trillion, nine hundred twenty-five billion, one hundred one million, seventy-eight thousand, four hundred twenty-one".