70102761421 has 16 divisors (see below), whose sum is σ = 87574652928. Its totient is φ = 54516898800.

The previous prime is 70102761413. The next prime is 70102761439. The reversal of 70102761421 is 12416720107.

It is not a de Polignac number, because 70102761421 - 2³ = 70102761413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70102761401) 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, 866265 + ... + 943726.

It is an arithmetic number, because the mean of its divisors is an integer number (5473415808).

Almost surely, 2^70102761421 is an apocalyptic number.

It is an amenable number.

70102761421 is a deficient number, since it is larger than the sum of its proper divisors (17471891507).

70102761421 is a wasteful number, since it uses less digits than its factorization.

70102761421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1810512.

The product of its (nonzero) digits is 4704, while the sum is 31.

The spelling of 70102761421 in words is "seventy billion, one hundred two million, seven hundred sixty-one thousand, four hundred twenty-one".